const string displayName = "Скан гарантии, подписанный ЭЦП Банка";
            var documentType = EleWise.ELMA.Model.Managers.EntityManager<Impeltech.Bank.Models.IDocumentTypeMSP>.Instance.Find(c => c.Name == displayName)
                .FirstOrDefault();

            if (documentType == null)
            {
                documentType = EleWise.ELMA.Model.Managers.EntityManager<Impeltech.Bank.Models.IDocumentTypeMSP>.Instance
                    .Create();
                documentType.Name = displayName;
                documentType.Save();
            }

            var signedFile = EleWise.ELMA.Model.Managers.EntityManager<Impeltech.Bank.Models.ISignedFile>.Create();

            signedFile.DocumentType = documentType;
            signedFile.Save();

            //Request  - атрибут в контексте - заявка на выдачу бг
            context.Request.ScanGuaranteeSignedBankElectronicSignature = (SignedFile) signedFile;

            context.Request.Save();