[ { "it_id": "1", "it_itemname": "h-Y-20220720080000", "it_timestamp": null, "it_actor": null }, { "it_id": "2", "it_itemname": "c-Y-20220720080000", "it_timestamp": "20220720080000", "it_actor": "2" }, { "it_id": "3", "it_itemname": "c-X-20220720080100", "it_timestamp": "20220720080100", "it_actor": "1" } ]