UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MHKG7iMvkDyBfpGlq+1HVctr54Y/KeIBOgwHv5nDIOk=' 
WHERE 
  key_id = '6af51703c3c0bad60fb58ccc8b8c46c0137c5734d73e924a1e9d3aa534f421f7' 
  AND (
    token = 'MHKG7iMvkDyBfpGlq+1HVctr54Y/KeIBOgwHv5nDIOk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )