UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'USI7p7J0XOGG6ZBCl6D9PAg7aciMbMpKZGWkKcCtftM=' 
WHERE 
  key_id = '6b5a092b7baed2de197fc13097918b794761e5cef2381035d893ab2f4b3872f4' 
  AND (
    token = 'USI7p7J0XOGG6ZBCl6D9PAg7aciMbMpKZGWkKcCtftM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )