rowid,room_id,user_id,event_id,membership,event_stream_ordering
855,!MlIdLmkJzcdLJKZnjs:matrix.jamesst.one,@slack_t0qh48pl4-u072zlzmnmc:matrix.jamesst.one,$1ofjfde46wieXNHdrB2lXtUfO6-rNS_RqswUfs9fC7Y,join,2009