(SELECT DISTINCT(follower) AS __id FROM
    (SELECT follower FROM subscriptions WHERE target=? AND model="openvk\\Web\\Models\\Entities\\User") u0
    LEFT JOIN
    (SELECT target FROM subscriptions WHERE follower=? AND model="openvk\\Web\\Models\\Entities\\User") u1
  ON u0.follower = u1.target WHERE u1.target IS NULL) u2
INNER JOIN profiles ON profiles.id = u2.__id