Configure logging to get a log every time a user accesses grafana

Hi. I see this log when a user logs out:

t=2018-11-08T10:36:06+0000 lvl=info msg=“Request Completed” logger=context userId=1 orgId=1 uname=baikal method=GET path=/logout status=302 remote_addr= time_ms=40 size=29 referer=

I would like to know if it’s possible to get a similar log every time a user logs in. I’ve already set the debug level to "debug" with no luck. I don’t see anything at all.

Edit: sometimes (and only sometimes) I see this log:

t=2018-11-08T10:49:46+0000 lvl=dbug msg=“Updating last user_seen_at” logger=context userId=1 orgId=1 uname=myuser user_id=1

I’m using grafana 5.2.x with postgres backend.