Can't parse a JSON Response using C#

Can't parse a JSON Response using C#

I have a very simple response from a Json request, however I can't seem to
find a easy way to parse it. I only find tutorials that use classes of
third party's. I want to use the native functionality of .NET 3.5 writing
in C# to interpret the response. Can anybody help, please?
{
"id": "10000",
"key": "TST-24",
"self": "http://www.example.com/jira/rest/api/2/issue/10000"
}