UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'dg6fh2jdy3LHzb3d3qnPmWITn/Ql5KePlhAB9q0YCdM=' 
WHERE 
  key_id = '641da252b700b0e94630832e7661aa1b435fc79d0e74490c0e86a7aeefd76094' 
  AND (
    token = 'dg6fh2jdy3LHzb3d3qnPmWITn/Ql5KePlhAB9q0YCdM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )