Newtonsoft.Json deserialize issue [Answered]

{"type":"accept","id":0,"ms_id":"00000","user_id":"000000000000","item_name":"Test Item","acc_name":"account"}

public class Order
{
    [JsonProperty("id")] public int Id { get; init; }
    [JsonProperty("item_name")] public string ItemName { get; init; }

    [JsonProperty("ms_id")] public long MessageId { get; init; }

    public Account Account { get; init; }
}

public struct Account
{
    [JsonProperty("user_id")] public long UserId { get; init; }
    [JsonProperty("acc_name")] public long Nickname { get; init; }
}