Extension-SCR-NotificationMessage Example

{
    "resourceType": "AuditEvent",
    "extension":  [
        {
            "url": "https://fhir.nhs.uk/StructureDefinition/Extension-SCR-NotificationMessage",
            "valueString": "Alert: Permission to view override 1C03CF4F-D404-4D76-B192-4F81727059F6"
        }
    ]
}