I do something very similar when troubleshooting problems.
Configure a log filter to match [probably something like (id='AUT24326') and realm='Admin Users']
Then under log settings, create a syslog server host for that filter.
I use Kiwi Syslog Daemon as a receiver, which has a great set of tools you can use for responding to incoming syslogs.
This will not work as well on the 700 since it can't do filtering like the larger concentrators. But, you can still do it without filters.