UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '3Y7YED9BUcjqaTHzUvPbOo6Lsmvh2RwLBpCBGicgn+Y=' 
WHERE 
  key_id = '935811be57613cfc224d489efc55d35b52849b124f81600d8c3e3d989fd86750' 
  AND (
    token = '3Y7YED9BUcjqaTHzUvPbOo6Lsmvh2RwLBpCBGicgn+Y=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )