Form Field Values on UserTask "complete"


I want to (audit)log submitted user task variables to my own business domain.
Therefore I try to use the Spring eventing bridge and listen to TaskEvent with name


I am using Camunda forms for form definitions. I know how to retrieve all the process variables, but this is not wanted. I also wanted to filter only the form fields, but since I am using Camunda forms, there are no form fields defined.

How can I access only the sumbitted values in the event listener?

Thank you
(using Camunda 7.16)