{
  "event": "addDevice",
  "payload": {
    "id": "of:0000ffffffff0008",
    "type": "switch",
    "online": false,
    "location": {
      "type": "latlng",
      "lat": 37.6,
      "lng": 122.3
    },
    "labels": [
      "0000ffffffff0008",
      "FF:FF:FF:FF:00:08",
      "sw-8",
      ""
    ],
    "metaUi": {
      "x": 520,
      "y": 350
    }
  }
}