{
  "id": "urn:ngsi-ld:system_alerts:id:FNNO:60592292",
  "type": "system_alerts",
  "last_updated": {
    "type": "Number",
    "value": 1604198100
  },
  "ttl": {
    "type": "Number",
    "value": 60
  },
  "version": {
    "type": "Text",
    "value": "3.0"
  },
  "data": {
    "type": "StructuredValue",
    "value": {
      "alerts": [
        {
          "alert_id": "21",
          "type": "station_closure",
          "station_ids": [
            "123",
            "456",
            "789"
          ],
          "times": [
            {
              "start": 1604448000,
              "end": 1604674800
            }
          ],
          "url": "https://example.com/more-info",
          "summary": "Disruption of Service",
          "description": "The three stations on Broadway will be out of service from 12:00am Nov 3 to 3:00pm Nov 6th to accommodate road work",
          "last_updated": 1604519393
        }
      ]
    }
  }
}