How to capture an event in Xamarin.Forms that was fired from an Android Background Service?

I have written an Android Service (using Xamarin) that fires a DataUpdated event, I would like to display the argument that was passed in the DataUpdated event on a Xamarin Form. I have tried to use a DependencyService but can only find examples of the Xamarin.Forms initiating communication with the Native code. How would I capture an event (in Xamarin.Forms) that was fired from a native background service?