UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'EHUJEDeo5XIs7j7mWdCWI4HUzGS/cwGNlhANmCsjjE0=' 
WHERE 
  key_id = '6af255a75ad9cf477eb976b5662efe600a779ef2489ea82da0a037805ccc72f8' 
  AND (
    token = 'EHUJEDeo5XIs7j7mWdCWI4HUzGS/cwGNlhANmCsjjE0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )