using Manatee.Json;

string jsonObjStr = "{\"attr0\":\"text here\", \"attr1\":{\"attr2\":5}}";

//Parse json strings
JsonValue jsonObj = JsonValue.Parse(jsonObjStr);
JsonValue jsonSchemaObj = JsonValue.Parse(jsonSchemaObjStr);
JsonSchema schema = new JsonSerializer().Deserialize<JsonSchema>(jsonSchemaObj);

//Validate schema
MetaSchemaValidationResults schemaResult = schema.ValidateSchema();

//Validate json object
SchemaValidationResults result = schema.Validate(data);

if(result.IsValid)
{
	//Access elements
	string zero = jsonObj.Object["attr0"].String;
	int one = (int) jsonObj.Object["attr1"].Object["attr2"].Number;

	//Check type of element
	if(jsonObj.Object["attr0"].Type == JsonValueType.String)
    	...
}

//Dynamically create json object
JsonObject obj = new JsonObject();
obj.Add("mykey", new JsonValue("myvalue"));
string jsonStr = obj.ToString();