How to properly make json in c#?

Question

JSON

now I'm making json code

var v = new
            {
                token = token, 
                method = "abc", 
                param = new string[1] { "data: [nokia]"},
                locale = "ru"
            };

            json = jss.Serialize( v );

get

{"token":"test","method":"abc","param":["data: [nokia]"],"locale":"ru"}

and you need to get json with "param": {"data": ["nokia"]}

{
"locale": "ru",
"token": "test",
"method": "abc", 
"param": {"data": ["nokia"]}
}

"param": {"data": ["nokia"]} is not formed correctly,
what should be corrected in the code?

Answer 1

var v = new
{
    token = token, 
    method = "abc", 
    param = new Dictionary< String, List<String> >() { { "data", new List<String>() { "nokia" } } },
    locale = "ru"
};

json = jss.Serialize( v );

Answer 2

on the

(
                        "data", 
                        new List<String>() { "nokia" } 
                    )

writes
None of the overloads of the "Add" method takes "1" arguments

Answer 3

Param = new { data = new[] {"Nokia"}}