I think there is no OOTB monitor/actor adapter for Dynatrace.
I just seen the Dynatrace Event API doc and i think you can try something like below:
- Create a module -> Workflow which will call the Dynatrace Event APi to fetch the events based on specific criteria.
- Use WebService/HTTP adapter to call the Dynatrace Event API, preferably HTTP Adapter as it returns the results in JSON.
- process the received events data according to your requirement.
- schedule this workflow to run every 'x' mins.
Hope this gives you some idea.
Maybe someone might have did this already they can help you as well.