CardName: "MainScreen",
CardId: "Id"
Div2PatchBody {
    Div2PatchBody {
        fields {
            key: "card"
            value {
                struct_value: {
                    fields {
                        key: "some key"
                        value {
                            string_value: "Rendered something"
                        }
                    }
                }
            }
        }
    }
    Templates : "some template"
}