Nextcloud app for monitoring

I wanted to know about any nextcloud(16.0) app available from which admin can monitor all user activity in his own Activity.
I want to use app exactly with functionality of Activity Logg( used before Nextcloud 11) for Nextcloud 15, just for Admin. So that, Admin can monitor what User Activities are taking place at what time.?
Its Kind off Urgent, please Help!

With Splunk and the Splunk App for Nextcloud you can do exactly that.