Unbounce api call authorization error in javascript

I need to get the data from javascript ajax call. I have username and password. But I am getting 401 unauthorized error. My ajax call is like:

$.ajax({
        url: ‘[https://api.unbounce.com/accounts/******/sub_accounts](https://api.unbounce.com/accounts/ ****** /sub_accounts “Link: https://api.unbounce.com/accounts/792612/sub_accounts”)’,
        type: ‘GET’,
        data: {
                 “basic_auth_username”: ‘******************************’,
                 “basic_auth_password”: ‘’***"
        },
        dataType: ‘application/json’,
        success:function(data) {
               console.log(“ajax request success”, data);
        },
        error: function() {
               console.log(“ajax request failed”);
        }
});

Please help me. 
Thanks.