UPDATE 
  q_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '2mpdPvZ2irVVX4Kf5+DdM0MtLk7eiwqLS2F7hu5Ru3M=' 
WHERE 
  key_id = '884efba4aa35cbdb3ba007ead3a01e2621f49363c3956a8ef3121aecb7ca0e3b' 
  AND (
    token = '2mpdPvZ2irVVX4Kf5+DdM0MtLk7eiwqLS2F7hu5Ru3M=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )