{
"token": "XXYYZZ", "team_id": "TXXXXXXXX", "api_app_id": "AXXXXXXXXX", "event": { "type": "grid_migration_finished", "enterprise_id": "EXXXXXXXX" }, "type": "event_callback", "event_id": "EvXXXXXXXX", "event_time": 1234567890
}
{
"token": "XXYYZZ", "team_id": "TXXXXXXXX", "api_app_id": "AXXXXXXXXX", "event": { "type": "grid_migration_finished", "enterprise_id": "EXXXXXXXX" }, "type": "event_callback", "event_id": "EvXXXXXXXX", "event_time": 1234567890
}