homeassistant/.storage/person

{
    "version": 2,
    "key": "person",
    "data": {
        "items": [
            {
                "name": "system administrator",
                "user_id": "66b148346e9c4c5483b8fcf107ebffe0",
                "device_trackers": [],
                "id": "system_administrator"
            }
        ]
    }
}