UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'n+RzpBrSOb9LTlQhe1zFhle0nVRGomADO/878i5SfG0=' 
WHERE 
  key_id = '81bb833590b95b049db04900f204d0ab1a38582d8d82cc83d50d028ffbb40f9f' 
  AND (
    token = 'n+RzpBrSOb9LTlQhe1zFhle0nVRGomADO/878i5SfG0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )