Unlike the other helpers, this one uses static class helpers to serialize and deserialize, hence it is a little bit easier than the others to use.
using Newtonsoft.Json;
var rawJSON = "{\"Name\":\"Fibonacci Sequence\",\"Numbers\":[0, 1, 1, 2, 3, 5, 8, 13]}";
var fibo = JsonConvert.DeserializeObject<Dictionary<string, object>>(rawJSON);
var rawJSON2 = JsonConvert.SerializeObject(fibo);