{ "event": { "header": { "namespace": "Alexa", "name": "ChangeReport", "messageId": "Unique identifier, preferably a version 4 UUID", "payloadVersion": "3" }, "endpoint": { "scope": { "type": "BearerToken", "token": "OAuth2.0 bearer token" }, "endpointId": "endpoint id" }, "payload": { "change": { "cause": { "type": "PHYSICAL_INTERACTION" }, "properties": [ { "namespace": "Alexa.PlaybackStateReporter", "name": "playbackState", "value": { "state": "STOPPED" }, "timeOfSample": "2021-12-01T18:20:00.00Z", "uncertaintyInMilliseconds": 500 } ] } } }, "context": { "properties": [ { "namespace": "Alexa.EndpointHealth", "name": "connectivity", "value": { "value": "OK" }, "timeOfSample": "2021-12-01T18:00:00.00Z", "uncertaintyInMilliseconds": 0 } ] } }