Layout with field visibility

{
    "sections": [
        {
            "name": "accountInformation",
            "label": "Account Information",
            "active": true,
            "cols": 3,
            "rows": [
                [
                    {
                        "apiName": "Name"
                    },
                    {
                        "apiName": "AccountSource"
                    },
                    {
                        "apiName": "Industry",
                        "visibility": {
                            "BillingCountry": {
                                "operator": "!=",
                                "value": "USA"
                            }
                        }
                    },
                    {
                        "emtyBlock": true,
                        "visibility": {
                            "BillingCountry": {
                                "operator": "=",
                                "value": "USA"
                            }
                        }
                    }
                ],
                [
                    {
                        "apiName": "Phone"
                    },
                    {
                        "apiName": "Fax"
                    },
                    {
                        "apiName": "Website"
                    }
                ]
            ]
        },
        {
            "name": "ssnInformation",
            "label": "SSN",
            "active": true,
            "cols": 1,
            "rows": [
                [
                    {
                        "apiName": "SSN__c",
                        "visibility": {
                            "Account.BillingCountry": {
                                "operator": "=",
                                "value": "USA"
                            }
                        }
                    }
                ]
            ]
        }
    ]
}