Multipart upload file alongside an object throwing error in server

So I am trying to make a PUT request to upload a image and an object. Everything seems ok ( except maybe the fact that the content-type for the object is application/json instead of multipart/form-data) but the server does not receive any data. On the server side I use laravel and PHP. In my app:

`MultipartBody.Part profilePictureBody = null;
        //Initialize and populate userDetailsRequest object to create the expected json format for PHP
        UserDetailsRequest userDetailsRequest = new UserDetailsRequest();
        userDetailsRequest.setUserDetails(userDetails);//
        // RequestBody requestBody = RequestBody.create(MediaType.parse("multipart/form-data"), profilePicture);

        if (profilePicture != null){
            profilePictureBody = MultipartBody.Part.createFormData(
                    "profile_picture",
                    profilePicture.getName(),
                    RequestBody.create(MediaType.parse("multipart/form-data"), profilePicture));
        }

        final Call<ResponseBody> res = apiService.putUserDetails("multipart/form-data", userDetails, profilePictureBody);

        res.enqueue(new Callback<ResponseBody>() {
            @Override
            public void onResponse(Call<ResponseBody> call, retrofit2.Response<ResponseBody> response) {
                if (response.isSuccessful()){
                    String responseBody = response.body().toString();
                    if (response.body() != null){
                            new SweetAlertDialog(context, SweetAlertDialog.SUCCESS_TYPE)
                                    .setTitleText("Success")
                                    .setContentText("Account details saved!")
                                    .setConfirmText("Ok")
                                    .show();
                            back.onResponse(call, response);

                    }
                    else {
                        new SweetAlertDialog(context, SweetAlertDialog.ERROR_TYPE)
                                .setTitleText("Server Error")
                                .setContentText("Could not run the request. Please try again later.")
                                .setConfirmText("Ok")
                                .show();
                        back.onFailure(call, null);
                    }
                }
            }

            @Override
            public void onFailure(Call<ResponseBody> call, Throwable t) {
                new SweetAlertDialog(context, SweetAlertDialog.ERROR_TYPE)
                        .setTitleText("Server Error")
                        .setContentText("Could not run the request. Please try again later.")
                        .setConfirmText("Ok")
                        .show();
                back.onFailure(null, t);
            }
        });`

`@Multipart
    @PUT(BuildConfig.BASE_API_VERSION + "main/users/user-details")
    Call<ResponseBody> putUserDetails(@Header("Content-Type") String contentType, @Part("user_details") UserDetails userDetails, @Part MultipartBody.Part imageFile);`

My OkHttpinterceptor:

`Gson gson = new GsonBuilder()
                .setDateFormat("yyyy-MM-dd HH:mm:ss")
                .excludeFieldsWithoutExposeAnnotation()
                .setLenient()
                .create();

        Retrofit.Builder builder = new Retrofit.Builder()
                .baseUrl(BuildConfig.BASE_API_URL);

        HttpLoggingInterceptor loggingInterceptor = new HttpLoggingInterceptor();
        loggingInterceptor.setLevel(HttpLoggingInterceptor.Level.HEADERS);
        loggingInterceptor.setLevel(HttpLoggingInterceptor.Level.BODY);
        OkHttpClient.Builder httpClient = new OkHttpClient.Builder();
        httpClient.addInterceptor(loggingInterceptor);

        if (token != null){
            httpClient.addInterceptor(new Interceptor() {
                @Override
                public Response intercept(Chain chain) throws IOException {
                    Request original = chain.request();

                    //Make a copy of the okhttp builder
                    Request.Builder requestBuilder = original.newBuilder()
                            .header("Authorization", "Basic " + token);
                    Request request = requestBuilder.build();

                    return chain.proceed(request);
                }
            });
        }
        builder.client(httpClient.build());

        builder.addConverterFactory(GsonConverterFactory.create(gson));
        Retrofit retrofit = builder.build();

        apiService = retrofit.create(MainInterface.class);`

My REQUEST looks like this:

`D/OkHttp: --> PUT http://test.dev.com/api/v1/main/users/user-details http/1.1
    I/Choreographer: Skipped 167 frames!  The application may be doing too much work on its main thread.
    D/OkHttp: Content-Type: multipart/form-data
    D/OkHttp: Content-Length: 15878
    D/OkHttp: --965ee1a1-6194-4fc7-93ff-d444218f05bc
    D/OkHttp: Content-Disposition: form-data; name="user_details"
    D/OkHttp: Content-Transfer-Encoding: binary
    D/OkHttp: Content-Type: application/json; charset=UTF-8
    D/OkHttp: Content-Length: 262
    D/OkHttp: {"email":"email@test.com","first_name":"Name","last_name":"Last Name","profile_picture":"http://cristian.dev.app.merchantproxy.com/uploads/http://cristian.dev.app.merchantproxy.com/uploads//uploads/197571179.jpg","timezone":"US/Eastern","username":"super_admin"}
    D/OkHttp: --965ee1a1-6194-4fc7-93ff-d444218f05bc
    D/OkHttp: Content-Disposition: form-data; name="profile_picture"; filename="merchant_proxy_logo.png"
    D/OkHttp: Content-Type: multipart/form-data
    D/OkHttp: Content-Length: 15180
    D/OkHttp: ?PNG
    D/OkHttp: 
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    D/OkHttp: ???X?ck*v+?//?D??gw6?v????_????%??????R?+???`qmJ?3?n?RsQ?-#,?2?????A?XB?s?+?!????sn,m??A??b?15?sm?V
                D/OkHttp: ?????W?z?I?[???p?R???b?~4R:?N??/?T?v?U?!}??hQ??J?????z6{#n???M??  ??
            09-14 13:09:28.682 19619-19794/com.merchantproxy.merchantproxy D/OkHttp: ?????1?,??dk?v?g&??B??H?&?F??????5?U???o??Mzg?>?\?????VNs\?
            09-14 13:09:28.682 19619-19794/com.merchantproxy.merchantproxy D/OkHttp: <n? d???R??t?i??Y???rK?Q?t??????=D?8P??Z??? <?g???w???B?}??D?p?Z~?????7??!m=q?hIv??&7?_?!??O??Cs??&7vVV?QW???!!?}r?6IX????b?(?B?+J????y?'!?E?*???$??]-?r?T???G???p??u??7;)??h.??G???#<???1?????+??????O?`m?F??k"Q?????|??Q?"??A?e?c??z.?sh?3=???hK??##????3f???cT??g??V?0{???{??\?j\ ?8gW?O6??J'K??~ %?n?zPN??U|????[???????????R??????????D1?????S???Xa????!rg?&F?'=?G??e?????z?????g??Ty??QU9S??l+?;H ?a[???z???S??u??N???7i??8??????w_?m1????
    D/OkHttp: ??D???ai??????|.???}??I?x???H???}??`???????E????????d????1    ?6????F?ol???8HZ7?????G??????K?U?S?)a?????,!??u_?M?q?]??}???Y8M
    D/OkHttp: ?9?^?F???r?G?G??t?v????>A?/?y???%?5???c4? ?z"`???M?1o??9=????2?? ?^D????N?c??????l???%4"?U?Al?<?Z??Xa?HpM?%????? h?+?=???V??}????A
    D/OkHttp: b??!???????[?j?V?2???c<?k?$??>K??@ ??|??J?},?C?J?/??m5k???9??c??ffY'???9?9?m??\L??h0t[??S}?/?V??????}?w?VK2??????
    D/OkHttp: r?WE???)?g?|??-1=?YiU(:???(f??{T*We?]z?b??}?L?8HV??Ec??m?m?R??'Y?????????-?K?S??^Vu?~?I   V??C????T?9?1M?}w??XH ?&m8#?3H??}???<EK???YK?h?Wy??$?y?0??.???g]%C?n??=???tUf0?N G?`?w?????]m?z?8)?e?H;??N??????C?c"?Z?BGH??4?&!???*>Gg???m??\? *o??=?n??$]?????X???*?D&??k?o??UK?|$??`???r<???(1Ô@?t1
    D/OkHttp: [m/???m?Z?? rk?&e?????C?-?\.??r?$?T???m?q?$K?B??
    D/OkHttp: ??|9????????k{????????K??}z?~W?|??mJ ?d??j?????M????S??;wZ?Fj?.???N?O?J????:??}}????>??@#u?qo??%Q?b?????ux?\???w??)?1?d???)??(??7??cD??j9/?8:?>??I?qd??r]'?B=%3?i^Vrf??L???
    D/OkHttp: n??~f??W??#?u??s???|?????5=?????ua??s??*AZ??[4??c?!?)??~?-??|???~?}*,??*?C???I?)U?    ?????8)????L??;???U??~?u?F???5?GL,?V?I??DE I?;?%#X__5x??4jd?X??yE????>3?
    D/OkHttp: n??'A?m?P?0?#?-??K?+4???6bF1*??l??#?%??WC@T?J???4??(/Z???*??^?B??????Nd??YT???????UC?B?8?X???}???????\??#G?+(/g81?]7L???qk???'*?z?+)a??+?E?,o?    ?~??E????
    D/OkHttp: ;?{?I???&?/?p&??M?N??z??>?rl?6T-4ta9?<M??46?????s??'-?????\/??yS???TA_?|~^~??,-o?Jy??lBT??Ec?2\l??uw?)]`?6-f?,?K???j*nrf3???Z???k????@??UC@ h?aR?@CvA???8?dH????1?ky????$%????[??@?????mD????N?c,?FO???$?=4:??L!??????NP?G5????L???5???!????p??|V?2??#?%? ?V??m.?`???>og??*?!c??O??]ZU??????*ILq?o?Y??=??!O?-?!?y?0}v?r????}UV&~?#    ?MQ????????X?|??ABP?b?z?6}??<'?W?w8?y?{)8c
    D/OkHttp: ?\?"??#H??m??"??[????\?[0%????@[??-?E??8???|??????ma?*?|?{-??E+2?0!???;fQD?????@>????P??y??YKu?
            D/OkHttp: Lm??X?????m?T????N????C?%?)Q? ,???l.???k??]r?<?O??)¢?y??Q?S?1??B?Z?[?@?/hp?ty??FPh.'uCF?+?@P??I?v?:??b
    D/OkHttp: b??:
    D/OkHttp: ?.t??
    D/OkHttp: ?~4?.?WiDq=mN?(k??*v????<]??@???K???,??$???i?p
    D/OkHttp: ?+?KT??   ie!?V?s,"u??Rs??=?'}?4t5?#?v?*?B ?l/bk?@cS?R??????pk?241?XP?8????&??p??C??%r? ??6K??????]ro?D??PP??#??m????????-T??8??%?d#5??P?X?Mq??n????????/cG!??cb???Zs???p???f_?yj??m?#??}?/0??=???v_?D ??<?{?\d9?2rSÀ??-?F???,n?q???????-?z?????g!?????|??;??@x<?r?h?Q?5%c-???>??M?????_+???e?t?y-c?*?QX? <?1?I?? ???#?1?i?+c???c???v?6?|??f? ;$K???$l3?`?qk?o&-???"h._"?F ?[????r??~D?????IG??@??J?o.'7?%J?:$>??D???u4&??<???r???L??1??k?h?L?e?? .???1vD?C??9?????1,???=U?8??L??(EO?d0?Z???:?cxx??|y??a.???`0&??`0?0?    ??`0L ??`0?0?   ??`0L ??`a0??`0L ??`a0??`0?@???`0??`0?@???`0&??`0?0???`0&??`0?0?    ??`0L ??`0?0?   ??`0L ??`a0??`0L ??`a0??`0?@???`0??`0?@???`0&??`0?@???`0&??`0?0?    ??`0&??`0?0?    ??`0L ??`a0?    ??`0??`???Q?v??????????IEND?B`?
            D/OkHttp: --965ee1a1-6194-4fc7-93ff-d444218f05bc--
    D/OkHttp: --> END PUT (15878-byte body)
    D/OkHttp: <-- 200 OK http://test.dev.com/api/v1/main/users/user-details (214ms)
    D/OkHttp: Date: Thu, 14 Sep 2017 10:10:11 GMT
    D/OkHttp: Server: Apache/2.4.7 (Ubuntu)
    D/OkHttp: Vary: Authorization
    D/OkHttp: Access-Control-Allow-Origin: *
    D/OkHttp: Access-Control-Allow-Headers: Origin, Content-Type
    D/OkHttp: Cache-Control: no-cache
    D/OkHttp: Set-Cookie: laravel_session=eyJpdiI6IlwvVzhJT3BTajM5czQ5cGowU05aZ21RPT0iLCJ2YWx1ZSI6IjlvUmN3V1ZxZE9OaWJJcUZoam9xazkxRWRTMjgrRnNcL3E0UXpWbjhTbjhTMU1yZmE4T01vRjhzS3hTKzJQQ2kxUVFXQTh0SnhmakdyVlhKcHo2M253UT09IiwibWFjIjoiOGYwMWVjOTk5Y2NkYWViMmU5YWM3MDllN2IzMjc2N2JhZDE3MTM2ZmQxZGE1M2U3MmViZTZiMTM4MjFhZjE3MSJ9; expires=Thu, 14-Sep-2017 12:10:11 GMT; Max-Age=7200; path=/; HttpOnly
    D/OkHttp: Content-Length: 49
    D/OkHttp: Keep-Alive: timeout=5, max=100
    D/OkHttp: Connection: Keep-Alive
    D/OkHttp: Content-Type: application/json
    D/OkHttp: {"success":true,"user_details":null,"image":null}
    D/OkHttp: <-- END HTTP (49-byte body)`

In laravel:

`public function putUserDetails(){
        $user_details = \Input::get('user_details');

        return response()->json(['success' => true, 'user_details' => $user_details, "image" => \Input::get('profile_picture')]);

    }`

Any idea about what am I doing wrong? Thank you all for your time!

square / retrofit

Multipart upload file alongside an object throwing error in server #2481