{
  "SchemaVersion": 1,
  "MessageType": "ActivityCreateResponse",
  "CreatedUtc": "2026-11-11T16:50:34.5419807Z",
  "CorrelationId": "4aefaefc-7951-46c3-9e19-22cfcae9f31f",
  "Payload": {
    "CorrelationId": "4aefaefc-7951-46c3-9e19-22cfcae9f31f",
    "ActivityRecId": 0,
    "ActivityNumber": "",
    "Success": false,
    "Message": "Session not found."
  }
}