Need to retrieve a Gift Card balance using REST API

[Shubz]

Using Postman I can create a gift card in the admin with an amount that brings back all the data I need. I see the card in the admin but now I want retrieve or GET the balance of that gift card, how do I do that? 

This is in my GET - https://{{vault:api-key}}:{{vault:password}}password@store.myshopify.com/admin/api/2023-04/gift_cards/64118069686655.json 

My body is 

{

    "balance": {

          "gift_card_id": 64118069686655,

    }

}

I get a bad request.