{
  "type": "object",
  "required": ["v", "id", "type", "ts", "deviceId", "payload"],
  "properties": {
    "v": { "type": "integer" },
    "id": { "type": "string" },
    "type": { "type": "string" },
    "ts": { "type": "integer" },
    "deviceId": { "type": "string" },
    "payload": { "type": "object" }
  }
}