JSFiddle - React, Tailwind, and code Playground

JavaScript

var old = {
 "data": 
[
    {
        "id" : "e49e183e-9325-4e62-8eda-7e63fb7cdbbd",
        "name" : "test"
    },
    {
        "id" : "ac310894-d808-447b-a189-d07edb7f6dd7",
        "name" : "test2"
    }
]   
};

var len = old.data.length,
    newJson = {aaData:[]},
    i;

for ( i=0; i < len; i+=1 ) {
    newJson.aaData.push( [ old.data[ i ].id, old.data[ i ].name] );   
}

console.log(newJson);