What is the proper diagram to describe an event subscriber final graph?

I’m working on a microservice application and I need to describe the complete execution graph of a specific event being published, where each node in the graph is a specific microservice subscription to this first event.

This diagram should be able to describe new events that are eventually published in response of this first event as well (the one that generates the whole execution graph).

Which diagrams are used to describe this kind of flow?