#include "json2.js"
var file = File.openDialog();
file.open("r");

if (file !== '') {
    var content = file.read();
    var data = JSON.parse(content);
    var list = data.list;

    for (i = 0; i < list.length; i++) {
        var comp = app.project.item(1);
        var layer = comp.layer('JSON Value');
        var textProp = layer.property("Source Text");
        var textDocument = textProp.value;

        var item = list[i];

        textDocument.text = item[1];
        textProp.setValueAtTime(item[0], textDocument);
    }

    read_file.close();
  }