Save when bracket is modified in jQuery Bracket Plugin using Ajax in ASP.Net

Check the code.

$(function () {
    var saveData = {
        teams: [
            ["Team 1", "Team 2"],
            ["Team 3", null],
            ["Team 4", null],
            ["Team 5", null]
        ],
        results: [
            [
                [[1, 0], [null, null], [null, null], [null, null]],
                [[null, null], [1, 4]],
                [[null, null], [null, null]]
            ]
        ]
    };
    var container = $('#save');
    container.bracket({
        init: saveData,
        save: function (data, userData) {
            jQuery.ajax("URL" + userData, {
                contentType: 'application/json',
                dataType: 'json',
                type: 'post',
                data: json
            })

        }
    });
})