UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'zlbHrZLtb2bucwqxheqGej+vjYr+vlOUzNdh+XXdSVo=' 
WHERE 
  key_id = 'a7ce48fb50c00a5400fb675e5c2d56c29da50845afe9304d97b1d124c792fec5' 
  AND (
    token = 'zlbHrZLtb2bucwqxheqGej+vjYr+vlOUzNdh+XXdSVo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )