Creating a document with NamedACL

Hello,
I have been successfully creating documents with the REST API for years as follows:

{

  "PropertyValues": [

    {

      "PropertyDef": 100,

      "TypedValue": {

        "DataType": 9,

        "HasValue": false,

        "Value": null,

        "Lookup": {

          "Deleted": false,

          "DisplayValue": null,

          "Hidden": false,

          "Item": 1,

          "Version": -1

        },

        "Lookups": null,

        "DisplayValue": null,

        "SortingKey": null,

        "SerializedValue": null

      }

    },

    {

      "PropertyDef": 0,

      "TypedValue": {

        "DataType": 1,

        "HasValue": false,

        "Value": "my test document",

        "Lookup": null,

        "Lookups": null,

        "DisplayValue": null,

        "SortingKey": null,

        "SerializedValue": null

      }

    }

  ],

  "Files": null

}


Now I would like to extend this structure with NamedACL

"NamedACL": [
{
.....
}
]



Nothing I tried worked for me.
Is this extension possible?

Thanks in advance.
Best regards
gagnersonpain