Change Context Webservice using Visual Studio 2013

Question

I generated a webservice using visual studio 2013, mysql using database first, until well, but when I put to generate in json, the answer is as follows:

string xmlns="http://digits.com.br/"> {"PAR_ID_23":2,"PAR_RAZAO_SOCIAL_23":"GILVAN JOAO DA SILVA","PAR_SENHA_MOBILE_23":"12","PAR_MOBILE_23":null}

But when I go I wish the return was:

{"Android":[{"PAR_ID_23":2,"PAR_RAZAO_SOCIAL_23":"GILVAN JOAO DA SILVA","PAR_SENHA_MOBILE_23":"12","PAR_MOBILE_23":null}]}>

I found this example:

       [WebMethod]
        [ScriptMethod(UseHttpGet = true, ResponseFormat = ResponseFormat.Json)]
        public void HelloWorld()
        {
            // return "Hello World";
            JavaScriptSerializer js = new JavaScriptSerializer();
            Context.Response.Clear();
            Context.Response.ContentType = "application/json";
            RegSuMsg data = new RegSuMsg();
            data.Message = "Hello world !";
            Context.Response.Write(js.Serialize(data));
        }
    }

    public class RegSuMsg
    {
        public String Message;
    }

Which works but I can’t adapt it to my function because it uses classes:

[WebMethod]
    public string ConsultarParceirosTodos()
    {
        try
        {
            NegLogin negLogin = new NegLogin();
            List<parceiro_23> colecao = new List<parceiro_23>();
            JavaScriptSerializer jsSerializer = new JavaScriptSerializer();
            string json = string.Empty;

            colecao.AddRange(negLogin.ConsultarParceiroTodos());
            json = jsSerializer.Serialize(colecao);
            return json;
        }
        catch (Exception ex)
        {
            throw new Exception(ex.Message);
        }

    }

I have tried to adapt it in various ways but the return is always not compatible, if I take the return I leave Context.Response.Write(js.Serialize(data)), also from the error in the execution.