UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'SmTbgEtS5yRlaW6nJn0iL11VF2BOZztCZ9FRyx/sAAg=' 
WHERE 
  key_id = '81e298b097935d91fae3948c82d459ba0134c46770c7cf9a6ca7017e193b0271' 
  AND (
    token = 'SmTbgEtS5yRlaW6nJn0iL11VF2BOZztCZ9FRyx/sAAg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )