Is your feature request related to a problem? Please describe.
Some users would like to show to external users the audit info, but just their own. Sandboxing the audit should allow them to do this.

Describe the solution you'd like
Expose the audit DB as a a new DB, so users can sandbox it

Describe alternatives you've considered
None

How important is this feature to you?
Requested by a user, they want to show Metabase usage to external users, but just their own

Additional context
NA