{
  "success": true,
  "error": "<string>",
  "agent_file_id": "<string>"
}

{
  "task_id": 123,
  "payload_uuid": "<string>",
  "agent_callback_id": "<string>",
  "file_contents": "<string>",
  "filename": "<string>",
  "delete_after_fetch": true,
  "comment": "<string>"
}