{
  "SchemaVersion": 1,
  "MessageType": "ActivityCreateResponse",
  "CreatedUtc": "2026-11-11T19:25:10.3621919Z",
  "CorrelationId": "41f48441-08bb-4ace-9ddf-0da03b4161d0",
  "Payload": {
    "CorrelationId": "41f48441-08bb-4ace-9ddf-0da03b4161d0",
    "ActivityRecId": 0,
    "ActivityNumber": "",
    "Success": false,
    "Message": "Session not found."
  }
}