gistfile1.txt

using Newtonsoft.Json;

class Data
{
    public string Title { get; set; }
    public DateTime SomeTimestamp { get; set; }
    public List<int> Numbers { get; set; } = new List<int>();
}

class Program
{
    static void Main()
    {
        Data data = JsonConvert.DeserializeObject<Data>("{\"title\":\"some title\",\"timestamp\":\"2022-01-01T00:00:00.000Z\",\"numbers\":[1,2,3]}");
        Console.WriteLine($"Title: {data.Title}");
        Console.WriteLine($"SomeTimestamp: {data.SomeTimestamp}");
        Console.WriteLine($"Numbers: {string.Join(", ", data.Numbers)}");
    }
}