UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'GmVHzCx8kK5dicX5iuG4XHC048NXgNHMSHTafm2szqE=' 
WHERE 
  key_id = '53a61ae5bb238423ed6c0de72f65453d1a0e5ba78022a6ecc0d4860c1b26c7ea' 
  AND (
    token = 'GmVHzCx8kK5dicX5iuG4XHC048NXgNHMSHTafm2szqE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )