Update space labels /rest/api/space/"+space_key+"?expand=metadata.labels

Hi
How can i update labels for a space using rest api , i tried this code below and nothing has been changed without display error

const bodyData2 = {
  "key": "FS",
  "metadata": {
    "labels": {
      "results":[
        {
          "prefix": "ok",
          "name": "ok",
          "id": "ok",
          "label": "ok"
        }
      ]
    },
  }
};
AP.request({
  url: "/rest/api/space/"+space_key+"?expand=metadata.labels", 
  type: 'PUT',
  contentType: "application/json",
  Accept: 'application/json',
  data: JSON.stringify(bodyData2),
  success: function (data) { 
    console.log(' success put ')
    console.log(data)
  }
}).catch(function (error) {
  console.log('error' + error)
});

here is the response (logged “data”)