diff --git a/backend/src/main/java/ervu_business_metrics/model/AccountData.java b/backend/src/main/java/ervu_business_metrics/model/AccountData.java
index e05f44b..b0d6dca 100644
--- a/backend/src/main/java/ervu_business_metrics/model/AccountData.java
+++ b/backend/src/main/java/ervu_business_metrics/model/AccountData.java
@@ -22,7 +22,7 @@ public class AccountData {
   private String workMail;
   private boolean esiaAccount;
   @JsonProperty("user-domain")
-  private ReferenceEntity userDomain;
+  private String userDomainId;
   private List<String> roles;
 
   public String getId() {
@@ -113,12 +113,12 @@ public class AccountData {
     this.esiaAccount = esiaAccount;
   }
 
-  public ReferenceEntity getUserDomain() {
-    return userDomain;
+  public String getUserDomainId() {
+    return userDomainId;
   }
 
-  public void setUserDomain(ReferenceEntity userDomain) {
-    this.userDomain = userDomain;
+  public void setUserDomainId(String userDomainId) {
+    this.userDomainId = userDomainId;
   }
 
   public List<String> getRoles() {
diff --git a/backend/src/main/java/ervu_business_metrics/model/ReferenceEntity.java b/backend/src/main/java/ervu_business_metrics/model/ReferenceEntity.java
deleted file mode 100644
index 5296d75..0000000
--- a/backend/src/main/java/ervu_business_metrics/model/ReferenceEntity.java
+++ /dev/null
@@ -1,19 +0,0 @@
-package ervu_business_metrics.model;
-
-import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
-
-/**
- * @author Adel Kalimullin
- */
-@JsonIgnoreProperties(ignoreUnknown = true)
-public class ReferenceEntity {
-  private String id;
-
-  public String getId() {
-    return id;
-  }
-
-  public void setId(String id) {
-    this.id = id;
-  }
-}
diff --git a/backend/src/main/java/ervu_business_metrics/service/processor/impl/AccountDataProcessor.java b/backend/src/main/java/ervu_business_metrics/service/processor/impl/AccountDataProcessor.java
index 31183f6..463bcae 100644
--- a/backend/src/main/java/ervu_business_metrics/service/processor/impl/AccountDataProcessor.java
+++ b/backend/src/main/java/ervu_business_metrics/service/processor/impl/AccountDataProcessor.java
@@ -50,7 +50,7 @@ public class AccountDataProcessor implements DataProcessor<AccountData> {
       record.setFio(data.getFio());
       record.setWorkMail(data.getWorkMail());
       record.setEsiaAccount(data.isEsiaAccount());
-      record.setDomainId(data.getUserDomain().getId());
+      record.setDomainId(data.getUserDomainId());
 
       if (existingIds.contains(data.getId())) {
         accountRecordsToUpdate.add(record);