original event.json

{
    "content": {
        "body": "XXX",
        "format": "org.matrix.custom.html",
        "formatted_body": "XXX",
        "msgtype": "m.notice",
        "org.matrix.msc1767.html": "XXX",
        "org.matrix.msc1767.text": "XXX"
    },
    "origin_server_ts": 1669813978182,
    "sender": "@someone:example.net",
    "type": "m.notice",
    "unsigned": {
        "age": 517735
    },
    "event_id": "$9auHoaiUKhF5RhoDvqT_raHtOmxM4B-OUtu_nvdz8FY",
    "room_id": "!IQmClWmiMLiClleYRZ:example.net"
}