{
   "Type" : "Notification",
   "MessageId" : "a8fc525e-5575-5a61-ad09-01025bb9c110",
   "TopicArn" : "arn:aws:sns:us-east-1:12345:someid",
   "Subject" : "DeliveryFailure event for app com.some.app (APNS)",
   "Message" : "{"DeliveryAttempts":1,
                 "EndpointArn":"arn:aws:sns:us-east- 1:12345:endpoint/APNS/com.some.app/3f08fd15-d349-3d82-b415-49df9ff9d8dd",
                 "EventType":"DeliveryFailure",
                 "FailureMessage":"Endpoint was not found",
                 "FailureType":"EndpointNotFound",
                 "MessageId":"4e658b3c-8738-5a67-a13b-d86089f45074",
                 "Resource":"arn:aws:sns:us-east-1:1234:app/APNS/com.some.app",
                 "Service":"SNS",
                 "Time":"2018-04-26T17:29:48.732Z"}",
   "Timestamp" : "2018-04-26T17:29:48.776Z",
   "SignatureVersion" : "1",
   "Signature" : "Some signature",
   "SigningCertURL" : "some url",
   "UnsubscribeURL" : "some url"
}