new persitent menu messenger node js

I am developing a bot in messenger ,I need to change my previous persitent menu.

my old menu's code :

requestData = { "setting_type": "call_to_actions", "thread_state": "existing_thread", "call_to_actions": [ { "type": "postback", "title": ......, "payload": ....., }, { "type": "web_url", "title": ....., "url": ......, },]};

but when I use the new form :

requestData = { "persistent_menu":[ { "locale":"default", "composer_input_disabled":true,

  "call_to_actions":[
    {
      "title":.....,
      "type":"nested",
      "call_to_actions":[
        {
          "title":......,
          "type":"postback",
          "payload":......
        },
      ]
    },   
  ]
},
{
  "locale":"zh_CN",
  "composer_input_disabled":false
}

]};

It doesn't work , I would be very grateful if you could help me .

via Oualid Barjani