{
    "id": "ui_broadcast",
    "msg_subclass": "hub.scenes.item.group.updated",
    "result": {
        "_id": "588b7eb528b12d03be86f36f",
        "name": "_ITEM_GROUP_NAME_",
        "sync": false,

        // changed fields only below
        "itemNames": [ "switch" ]
    }
}