{
  "context": {},
  "event": {
    "header": {
      "messageId": "Unique identifier, preferably a version 4 UUID",
      "namespace": "Alexa.DoorbellEventSource",
      "name": "DoorbellPress",
      "payloadVersion": "3"
    },
    "endpoint": {
      "scope": {
        "type": "BearerToken",
        "token": "access-token-from-Amazon"
      },
      "endpointId": "appliance-001"
    },
    "payload": {
      "cause": {
        "type": "PHYSICAL_INTERACTION"
      },
      "timestamp": "2018-06-09T23:23:23.23Z"
    }
  }
}