UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'WRUm6qL3qwaCMTaB/x1LaXQpZe2gKUYSh9tkuOfgIPU=' 
WHERE 
  key_id = '87c7c74519bbdf63128ec03e77fbab28f90eefbd2e17edb44526e34d931bf0c7' 
  AND (
    token = 'WRUm6qL3qwaCMTaB/x1LaXQpZe2gKUYSh9tkuOfgIPU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )