Enhance resolver request

[offerm]

Fixes: #

Description

Please, describe what this PR does in detail:

• If it's a bug fix, detail the root cause of the bug and how this PR fixes it.
• If it's a new feature, describe the feature this PR is introducing and design decisions.
• If it's a refactoring, describe why it is necessary. What are its pros and cons in respect to the previous code, and other possible design choices.

PR review check list

Quality check list that cannot be automatically verified.

• Safety
  • [ ] The changes respect the necessary conditions for safety (https://raiden-network-specification.readthedocs.io/en/latest/smart_contracts.html#protocol-values-constraints)
• Code quality
  • [ ] Error conditions are handled
  • [ ] Exceptions are propagated to the correct parent greenlet
  • [ ] Exceptions are correctly classified as recoverable or unrecoverable
• Compatibility
  • [ ] State changes are forward compatible
  • [ ] Transport messages are backwards and forward compatible
• Commits
  • [ ] Have good messages
  • [ ] Squashed unecessary commits
• If it's a bug fix:
  • Regression test for the bug
    • [ ] Properly covers the bug
    • [ ] If an integration test is used, it could not be written as a unit test
• Is it a user facing feature/bug fix?
  • [ ] Changelog entry has been added