The way I approached this was to have a dedicated stream for that particular dataset and then create a Message Count alert on it so that if the count is 0 after X minutes, send a notification.
I also setup a Dashboard to monitor my forwarders and data over time (5 mins, 1 hr, 8hrs, 1day, etc.). I do the “source” in one panel and a data “type” in another - it provides a view of what what received by the server over time and let’s me know if something stopped forwarding. If you do something like that, just make sure you adjust the cache time on the widget so that it is not the default 60 seconds for the bigger queries.