UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'gUaihOcU6fjqz9k0zTg8Kwy0RpnCqmEJaiSwe0oCZyQ=' 
WHERE 
  key_id = '993f50ee6d374a7819921690954092047e81654b059ec7e575e7c604eb1c904b' 
  AND (
    token = 'gUaihOcU6fjqz9k0zTg8Kwy0RpnCqmEJaiSwe0oCZyQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )