{
  "family": "MX_EVENT_FAMILY_ON_DATA_CHANGE",
  "sessionId": "session-fixture",
  "serverHandle": 12,
  "itemHandle": 34,
  "value": {
    "dataType": "MX_DATA_TYPE_INTEGER",
    "variantType": "VT_I4",
    "int32Value": 123
  },
  "quality": 192,
  "sourceTimestamp": "2026-01-01T00:00:00Z",
  "statuses": [
    {
      "success": 1,
      "category": "MX_STATUS_CATEGORY_OK",
      "detectedBy": "MX_STATUS_SOURCE_RESPONDING_LMX",
      "detail": 0,
      "rawCategory": 0,
      "rawDetectedBy": 0,
      "diagnosticText": "OK"
    }
  ],
  "workerSequence": "1",
  "workerTimestamp": "2026-01-01T00:00:00.010Z",
  "gatewayReceiveTimestamp": "2026-01-01T00:00:00.015Z",
  "onDataChange": {}
}