I am facing issue while fetching data from a web service that provides data in a

I am facing issue while fetching data from a web service that provides data in a format as shown below example: -
[dataA:"Value", dataB:":[[{"valueOne":1,"valueTwo":{"id":1,"code":"Test","name":"Value"},"valueThree":{"id":4,"code":"Test","name":"Value"},"valueFour":[],"valueFive":[],"]
I have created a CDT with the format as shown in the example but I get the error as mentioned below when I use fromJson function:-
Error evaluating function fn!fromjson_appian_internal : a!fromJson() cannot transform input in to an Appian type because it contains a list of lists.
Error is descriptive in itself but I need help about how to resolve this issue.
Thanks in advance.

OriginalPostID-215425

OriginalPostID-215425