UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '9PnVyeAAQesjtR/PqC3+aWDUrP/jUoAe9ITkox7fADU=' 
WHERE 
  key_id = 'd9b5724267d74d939e29efcfb54ea4fc104c16d64851389712a384b0f0daeb2f' 
  AND (
    token = '9PnVyeAAQesjtR/PqC3+aWDUrP/jUoAe9ITkox7fADU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )