{
    "callbackReference": "http://example.com/callback",
    "requestTestNotification": true,
    "websockNotifConfig": {
        "websocketUri": "ws://example.com/websocket",
        "requestWebsocketUri": true
    },
    "expiryDeadline": {
        "seconds": 1644691200,
        "nanoSeconds": 0
    },
    "filterCriteria": {
        "appInstanceId": "app-123"
    },
    "subscriptionType": "INVALID_SUBSCRIPTION_TYPE"
}