This screen should be accessible only by link and feature warning on top.
Warning! Do not submit transactions somebody sent you in a message. Always check what you are sending on transaction confirmation screen or in https://polkadot.js.org/apps/#/extrinsics/decode
One textarea input field and submit button for encodedCallData similar to https://polkadot.js.org/apps/#/extrinsics/decode (we don't need to decode it as it's done in tx confirm window).
This screen should be accessible only by link and feature warning on top.
Warning! Do not submit transactions somebody sent you in a message. Always check what you are sending on transaction confirmation screen or in https://polkadot.js.org/apps/#/extrinsics/decode
(wen feature in tx conf screen? ?)