{
  "data": {
    "message": "<string>",
    "message_id": "<string>",
    "thread_id": "<string>",
    "user_id": "<string>",
    "attachments": [
      {
        "mime_type": "<string>",
        "name": "<string>",
        "url": "<string>"
      }
    ]
  },
  "id": "<string>",
  "occurred_at": "2023-11-07T05:31:56Z",
  "type": "message.before_submit.v1",
  "workspace_id": "<string>",
  "project_id": "<string>"
}

{
  "decision": "allow",
  "reason": "<string>"
}