Question: Among the lists created by user 4208563, which one has the highest number of followers? Indicate how many followers it has and whether the user was a subscriber or not when he created the list.
SQL: SELECT T1.list_followers, T2.user_subscriber = 1 FROM lists AS T1 INNER JOIN lists_users AS T2 ON T1.user_id = T2.user_id AND T2.list_id = T2.list_id WHERE T2.user_id = 4208563 ORDER BY T1.list_followers DESC LIMIT 1