I need to add custom metadata tags and get same through unbounce api

Requirement:

I need to add new custom metadata fields image url and description like other fields url, createdAt, name and state for my unbounce page

Current Response: .

Page response from API

{

“url”: “”,

“metadata”: {

}

“createdAt”: “”,

“name”: “”,

“state”: “”

}

Target Response:

I need those two added tags in API response like below.

Page response from API

{

“url”: “”,

“metadata”: {

}

“createdAt”: “”,

“name”: “”,

“state”: “”

“image url”: “”

“description”: “”

}