Fields	Type	Required	Description
_id	string	+	Identifies which setting was added.
element	dictionary	+	The element that was updated. It contains element number and element value.
operation	string	+	Tells you what initiated the broadcast. Can be one of: hub.item.dictionary.value.add – Dictionary value added hub.item.dictionary.value.set – Dictionary value updated hub.item.dictionary.value.remove – Dictionary value removed