UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'pXUuEsCdsw9jSmpVIYpHN6iiAxrIrjNBzThBpmHgO5k=' 
WHERE 
  key_id = '8f9d4dfcedc42e44851fbd5937f6028e7b2e552a8f37aed80f3bbbe5c8caedf4' 
  AND (
    token = 'pXUuEsCdsw9jSmpVIYpHN6iiAxrIrjNBzThBpmHgO5k=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )