{
  "event": "addInstance",
  "payload": {
    "id": "onos-2",
    "ip": "192.168.2.2",
    "online": true,
    "uiAttached": true,
    "switches": 1,
    "labels": [
      "onos-2",
      "192.168.2.2"
    ]
  }
}