Using PowerShell to pull BI Activities show only the "User Key" - Need readable Name

The PowerShell command Get-PowerBIActivityEvent returns the needed Activity logs; however there are only machine names for the objects related to the activity. How/where can we obtain the Human Readable names? For example - we are VERY interested in any changes to Data Source Credentials - and the PS gives us that information but with no way to tell which are the Test Data Source vs. a Production Data Source. In the example below - the User Key does distinguish between the sources - but how do I confirm this key against the Name of the Data Source in the Admin portal?

Terry