curl --request POST \
  --url https://api.musixmatch.com/ws/1.1/work.validity.post \
  --header 'Content-Type: application/json' \
  --data '{
  "data": {
    "identifier": "<string>",
    "validity_end": "<string>"
  }
}'

{
  "message": {
    "body": "<string>",
    "header": {
      "execute_time": 123,
      "hint": "<string>",
      "status_code": 123
    }
  }
}