Event: User Data Stream Expired
Event Description
When the listenKey used for the user data stream turns expired, this event will be pushed.
Notice:
- This event is not related to the websocket disconnection.
 - This event will be received only when a valid 
listenKeyin connection got expired. - No more user data event will be updated after this event received until a new valid 
listenKeyused. 
Event Name
listenKeyExpired
Response Example
{
    'e': 'listenKeyExpired',      // event type
    'E': 1576653824250              // event time
}