UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'x4HHLfNd7yWzzHSAMIE8wTI4US4nhPu4bb3W89KfwpY=' 
WHERE 
  key_id = '938c8a1bd3d236ce90ac84a4ce94ebe07953de2e851f42cea50139a7868ab470' 
  AND (
    token = 'x4HHLfNd7yWzzHSAMIE8wTI4US4nhPu4bb3W89KfwpY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )