Cannot update Name-Value Pairs Column in a Table

[timwu]

I'm trying to update a column in a table that is typed Name-Value Pairs, within Scripted REST API, however, I was not able to update the column, the other "id" column typed String is updating fine.

Is there something that I have done wrong?

    var dataObj = {

        name: 'test',

        email: 'test@example.com'

    };

    var grNew = new GlideRecord('my_table');

    grNew.initialize();

    grNew.setValue('id', 'abcde');

    grNew.setValue('data', JSON.stringify(dataObj));

    var newSysId = grNew.insert();