{
  "id": "urn:ngsi-ld:system_alerts:id:FNNO:60592292",
  "type": "system_alerts",
  "last_updated": 1604198100,
  "ttl": 60,
  "version": "3.0",
  "data": {
    "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
      }
    ]
  }
}