Fetching a data from model error

Question

I am new to MVC and I want to get the data out of my model in view, my code is given below and the corresponding class as well.when I tried to do using the existing code it gives me error,The model item passed into the dictionary is of type .. but this dictionary requires a model item of type

        public ActionResult Index(string userid)
    {

        var model = new AssociationsViewModel()
        { 
            userid = userid,
            str = getAssociations(userid)
        };


        //AssociationsViewModel.RootObject obj = new AssociationsViewModel.RootObject();
        //  List< AssociationsViewModel.RootObject>   obj2 = model.userlist;

        //AssociationsViewModel flight = Newtonsoft.Json.JsonConvert.DeserializeObject<AssociationsViewModel>(model);

        return View(model);
    }

    public JsonResult getAssociations(string id)
    {

     var inputData = new Dictionary<string, string>()
      {
        { "databaseName", string.IsNullOrEmpty( Helper.databasename)? "" :  Helper.databasename},
        { "sourceUrl", Helper.sourceurl},
        { "physicianId", id },

      };

        var str = _client.FetchData
          (
            "associations/getAssociations",
            inputData
          );

        return Json( str.Content.ToString());
    }


public class AssociationsViewModel
{
    public string userid { get; set; }
    public System.Web.Mvc.JsonResult str { get; set; }

    public class RootObject
    {
        public string firstname { get; set; }
        public string lastname { get; set; }
        public string email { get; set; }
    }

    public List<RootObject> userlist { get; set; }
    public AssociationsViewModel()
    {

    }
}