How to get create a Post request body from a dynamic mappable parameters?

I need help to get dynamic mappable parameters name and value to create a request body for “POST” request.
Here below is my rpc function response.

[
  {
    "name": "attributes",
    "label": "Attributes",
    "type": "collection",
    "spec": [
      {
        "name": 102,
        "label": "Description",
        "attributeId": 102,
        "required": false,
        "type": "text"
      },
      {
        "name": 104,
        "label": "Version",
        "attributeId": 104,
        "required": false,
        "type": "number"
      },
      {
        "name": 105,
        "label": "Feedback",
        "attributeId": 105,
        "required": false,
        "type": "text"
      }
    ]
  }
]

Below I have mappable parameters code

[
	{
		"name": "objectTypeId",
		"label": "Object Type",
		"required": true,
		"type": "select",
		"options": {
			"store": "rpc://getObjectTypeTags",
			"nested": [
				{
					"name": "objectId",
					"label": "Object Id",
					"required": true,
					"type": "number"
				},

				"rpc://getFields"
			]
		}
	}
]

Here i have communication code:

{
	// Request to API endpoint with parameter "id" defined in Mappable parameters.
	"url": "/Objects/data",
	"method": "POST",
	"headers": {},
	"qs": {},
	"body": [
		{
			"idAttribute": "{{parameters.attributes.attributeId}}",
			"idObject": "{{parameters.objectId}}",
			"value": "{{parameters.attributes.name}}"
		}
	],
	"response": {
		"output": "{{body}}"
	}
}

I need to form the request body for the POST api as given below

[
  {
    "idAttribute": 0,
    "idObject": 0,
    "value": "string"
  }
]

Output from the module while executing POST request.

Please help me, how can I create a request body for POST request.

Waiting for the response. :folded_hands: