UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PHpnULuNthi/YQj/q+RsfsI8HPByVNzr/DDVf3RIrrk=' 
WHERE 
  key_id = '4350dea593e646645063e71e87c4f470f7753a335417a677333d6cc4c00451ab' 
  AND (
    token = 'PHpnULuNthi/YQj/q+RsfsI8HPByVNzr/DDVf3RIrrk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )