CustomFieldPatch

{
    "label": "string",
    "type": "text",
    "scope": "contact",
    "description": "string",
    "required": false,
    "active": true,
    "showToClient": false,
    "section": "string",
    "position": -2147483648,
    "multiline": false,
    "hideWhenEmpty": false,
    "readOnly": false,
    "options": [
        {
            "value": "string",
            "label": "string"
        }
    ],
    "optionsPatch": {
        "upsert": [
            {
                "value": "string",
                "label": "string"
            }
        ],
        "remove": [
            "string"
        ]
    },
    "linkTemplate": "string",
    "linkLabel": "string",
    "hideWhenEqualsNative": "name",
    "mirror": {
        "idAlias": "string"
    }
}