UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'cNU2ZlDaKwIAe7cCoO4jG9OA5YVLcGKboMtcfQq5gqo=' 
WHERE 
  key_id = '4ebea21bd57d85705e693edcfac0d5ff897755e1512f295163216471ff294448' 
  AND (
    token = 'cNU2ZlDaKwIAe7cCoO4jG9OA5YVLcGKboMtcfQq5gqo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )