UPDATE 
  q_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Xu30LJYv7PzebkPPGZXj6ztGRm526EONEv4T94S62a0=' 
WHERE 
  key_id = 'af5683902ca57e9b2c63f6728e56cfdc6f17f5850fdfede7dde58091ed7a5530' 
  AND (
    token = 'Xu30LJYv7PzebkPPGZXj6ztGRm526EONEv4T94S62a0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )