This push event notifies your server when a unit is added to a unit group.
EVENT_UNIT_GROUP_ADD POST
{"key": "YOUR_API_KEY",// Authenticate legitimate event traffic"type": "EVENT_UNIT_GROUP_ADD","data": {"identId":1,"identIds": [1,2,3],// OPTIONAL: Only sent when a unit group is having the name updated"groupName":"Ladder 61" }}