UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'uUXVGiOpkhLa/TSE6PDw6uzlrOWSjADPyXFyM6hBeIQ=' 
WHERE 
  key_id = '34afd0c0caa4b8ee393df1d843eeec7acafe7b28561ecdde14e3284862974389' 
  AND (
    token = 'uUXVGiOpkhLa/TSE6PDw6uzlrOWSjADPyXFyM6hBeIQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )