rowid,event_id,room_id,type,state_key,membership,event_stream_ordering
1356,$70vhR9VccZOrsWTImw42QW6PdLHNLEgK51LZfsVh5H4,!AjfUojluHjlirKHHqd:matrix.jamesst.one,m.room.member,@slack_t0qh48pl4-u0qh48pn0:matrix.jamesst.one,join,1481