homeassistant/.storage/frontend.user_data_a90582b5b23746adbd9f642795693b5a

{
    "version": 1,
    "key": "frontend.user_data_a90582b5b23746adbd9f642795693b5a",
    "data": {
        "language": {
            "language": "en",
            "number_format": "language",
            "time_format": "language"
        }
    }
}