gistfile1.txt

{
    "rules": [
        {
            "local": {
                "user": "name"
            },
            "remote": [
                {
                    "type": "UserName"
                }
            ]
        }
    ]
}

{
    "rules": [
        {
            "local": {
                "user": {
                    "name": "@@UserName@@"
                }
            },
            "remote": [
                {
                    "type": "UserName"
                }
            ]
        }
    ]
}