{
  "event": {
    "header": {
      "namespace": "Alexa.ThermostatController",
      "name": "ErrorResponse",
      "messageId": "Unique identifier, preferably a version 4 UUID",
      "correlationToken": "Opaque correlation token that matches the request",
      "payloadVersion": "3"
    },
    "endpoint": {
      "scope": {
        "type": "BearerToken",
        "token": "OAuth2.0 bearer token"
      },
      "endpointId": "Endpoint ID"
    },
    "payload": {
      "type": "THERMOSTAT_IS_OFF",
      "message": "The thermostat is currently off."
    }
  }
}