UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '3vu4hnKCdC1ui6GHeNOwinDA+mDSXQqYH5lUp7E+3Nc=' 
WHERE 
  key_id = '6c6fa15dbafbe731bd9c302e633972535e80cdc193b493c02449e510b5bbc0c0' 
  AND (
    token = '3vu4hnKCdC1ui6GHeNOwinDA+mDSXQqYH5lUp7E+3Nc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )