There is no information on how to do this in the documentations and I've tried everything I can think of with no success.

Can someone show me how it can be done?

for instance Id like to have something like...

    [JsonObject]
    public class Location
    {
        [JsonProperty]
        public String Name { get; set; }
        [JsonProperty]
        public String FoodType { get; set; }
        [JsonProperty]
        public Address address { get; set; }

        [JsonObject]
        public class Address
        {
            [JsonProperty]
            public string address;
            [JsonProperty]
            public string City;
            [JsonProperty]
            public string State;
            [JsonProperty]
            public string Zip;
        }
    }

but then I get an error along the lines of "Don't know about Location+Address"