If you want to audit your environment I would rather recommend to upgrade to Viya 3.3. Auditing is not documented, hence probable not official supported/present in 3.2.
In SAS Viya 3.2 probably your better change is to parse the logs of microservices and web applications:
The SAS Users Group for Administrators (SUGA) is open to all SAS administrators and architects who install, update, manage or maintain a SAS deployment.