rowid,room_id,user_id,event_id,membership,event_stream_ordering
527,!RppQZemJMBraLoZloF:matrix.jamesst.one,@slack_t0qh48pl4-u072zlzmnmc:matrix.jamesst.one,$jS8Siag9LHVNh1MzTRHRC39J56FMvHUFyb3pMPNUlu8,join,1681