Added To Group Notification
This is a notification from the API when an Ongair hosted account is added to a group. It takes the form of a HTTP POST to the specified URL with the following parameters:
|group_id||Integer||27||The id of the group|
|notification_type||String||AddedToGroup||The type of the notification|
|account||String||254722123456||Your WhatsApp account number|
The client should respond with a HTTP status code of 200. The response body is ignored.