POST /api/records/517458e6-0a48-4af0-a33f-4089f87ccfda/fields/6a7da1b6-7958-491a-b95e-149de4ad9f39/3b5fb94b-2fd1-4922-8257-68bfe29f7c8b  HTTP/1.1
Content-Type: application/json; charset=UTF-8
Host: https://demo.kpsys.cz

{
  "value":"Headway"
}