{
    "resource": "me/events",
    "changeType": "created",
    "notificationUrl": "......",
    "expirationDateTime": "2019-05-26T19:54:53.292047+00:00",
    "applicationId": "......",
    "creatorId": "......",
    "id": "a20d818d-50d9-428e-b4c0-8e5c2aed605b",
    "clientState": "...."
}