private static void RemoveAuthorization(Guid qvsId, string doc, string name)
{
DocumentNode docNode = FindDoc(qvsId, doc);
DocumentMetaData dm = apiClient.GetDocumentMetaData(docNode, DocumentMetaDataScope.Authorization);
DocumentAccessEntry dae = dm.Authorization.Access.Find(e => e.UserName == name);
dm.Authorization.Access.Remove(dae);
apiClient.SaveDocumentMetaData(dm);
}