rowid,room_id,user_id,event_id,membership,event_stream_ordering
269,!hqiiyckjNGemPGuALY:matrix.jamesst.one,@slack_t0qh48pl4-u072zlzmnmc:matrix.jamesst.one,$gaD-1a_ODn3Mac1iajp8nq2XYwxf45FqQU8er6AUSRY,join,1392