UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'K4yAEldxdMPmYWdb9P32lwAYr1zAS38qQcXbpVLH8tM=' 
WHERE 
  key_id = '403995379ffd8da467185ff52ae98a66b7b83157e9710df677390c35e946f8a8' 
  AND (
    token = 'K4yAEldxdMPmYWdb9P32lwAYr1zAS38qQcXbpVLH8tM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )