Explain Query (mysql)

EXPLAIN SELECT baskets.* FROM baskets INNER JOIN subscriptions s ON (s.user_id = '618755' AND baskets.basket_id = s.basket_id AND s.type != 4) WHERE baskets.in_use = 1

id	select_type	table	partitions	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE										no matching row in const table