rowid,room_id,user_id,event_id,membership,event_stream_ordering
643,!nJVpZYntXuvRnsxkfR:matrix.jamesst.one,@slack_t0qh48pl4-u0a68v69v3r:matrix.jamesst.one,$h7aHqlYK-WxlIYeX6iqX8RY3-58Fpy73CRGlTzRsaQ4,join,1797