Cannot convert Dictionary<string, Dictionary<string, string>> to JsonObject in C#

I am trying to return JsonObject as the interface of my method is –
public Task<ServiceResult<JsonObject>> GetTranslation(string language); but my test fails at expectedData:

  var apiResponse = new Dictionary<string, Dictionary<string, string>>() 
      {
        { "PAGE_NAME", new Dictionary<string, string>() { { "KEY_NAME", "LOCALE IN PARAMETER LANGUAGE" }, { "COPY_TO_CLIPBOARD", "Copy to clipboard" } } }
      };

      var jsonString = JsonConvert.SerializeObject(apiResponse);
      var expectedData = JsonConvert.DeserializeObject<JsonObject>(jsonString);

Error Message: Newtonsoft.Json.JsonSerializationException : Unable to find a default constructor to use for type System.Text.Json.Nodes.JsonObject. Path 'PAGE_NAME', line 1, position 13.

I can’t change the interface as it can’t deserialize the returned object.

>Solution :

Try simply parsing the JSON string:

using System.Text.Json.Nodes;

// ...

var expectedData = JsonObject.Parse(jsonString)!.AsObject();