UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Kg+IoVGG/lCWlK+392LwUx64P5BKvlVynvEoGQJH504=' 
WHERE 
  key_id = '5b9defc31e2db709e471545506f905fb9b39533035f3db9914c5add0651ece3d' 
  AND (
    token = 'Kg+IoVGG/lCWlK+392LwUx64P5BKvlVynvEoGQJH504=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )