Add JObject to JObject

Answer 1

One more example

var jArray = new JArray {
    new JObject
    {
        new JProperty("Property1",
            new JObject
            {
                new JProperty("Property1_1", "SomeValue"),
                new JProperty("Property1_2", "SomeValue"),
            }
        ),
        new JProperty("Property2", "SomeValue"),
    }
};