diff --git a/dmp-backend/core/src/main/java/eu/eudat/model/persist/DmpPersist.java b/dmp-backend/core/src/main/java/eu/eudat/model/persist/DmpPersist.java
index b3b8c7571..c5cce3a4a 100644
--- a/dmp-backend/core/src/main/java/eu/eudat/model/persist/DmpPersist.java
+++ b/dmp-backend/core/src/main/java/eu/eudat/model/persist/DmpPersist.java
@@ -2,6 +2,7 @@ package eu.eudat.model.persist;
 
 import eu.eudat.commons.enums.DmpStatus;
 import eu.eudat.commons.validation.ValidId;
+import eu.eudat.model.persist.dmpproperties.DmpPropertiesPersist;
 
 import java.time.Instant;
 import java.util.UUID;
@@ -15,7 +16,7 @@ public class DmpPersist {
 
     private DmpStatus status;
 
-    private String properties;
+    private DmpPropertiesPersist properties;
 
     private String description;
 
@@ -45,11 +46,11 @@ public class DmpPersist {
         this.status = status;
     }
 
-    public String getProperties() {
+    public DmpPropertiesPersist getProperties() {
         return properties;
     }
 
-    public void setProperties(String properties) {
+    public void setProperties(DmpPropertiesPersist properties) {
         this.properties = properties;
     }
 
diff --git a/dmp-backend/core/src/main/java/eu/eudat/model/persist/dmpproperties/DmpBlueprintValue.java b/dmp-backend/core/src/main/java/eu/eudat/model/persist/dmpproperties/DmpBlueprintValue.java
new file mode 100644
index 000000000..f255fc7cd
--- /dev/null
+++ b/dmp-backend/core/src/main/java/eu/eudat/model/persist/dmpproperties/DmpBlueprintValue.java
@@ -0,0 +1,24 @@
+package eu.eudat.model.persist.dmpproperties;
+
+public class DmpBlueprintValue {
+
+    private String fieldId;
+
+    private String fieldValue;
+
+    public String getFieldId() {
+        return fieldId;
+    }
+
+    public void setFieldId(String fieldId) {
+        this.fieldId = fieldId;
+    }
+
+    public String getFieldValue() {
+        return fieldValue;
+    }
+
+    public void setFieldValue(String fieldValue) {
+        this.fieldValue = fieldValue;
+    }
+}
diff --git a/dmp-backend/core/src/main/java/eu/eudat/model/persist/dmpproperties/DmpContact.java b/dmp-backend/core/src/main/java/eu/eudat/model/persist/dmpproperties/DmpContact.java
new file mode 100644
index 000000000..c60fe0c08
--- /dev/null
+++ b/dmp-backend/core/src/main/java/eu/eudat/model/persist/dmpproperties/DmpContact.java
@@ -0,0 +1,44 @@
+package eu.eudat.model.persist.dmpproperties;
+
+public class DmpContact {
+
+    String userId;
+
+    String firstName;
+
+    String lastName;
+
+    String email;
+
+    public String getUserId() {
+        return userId;
+    }
+
+    public void setUserId(String userId) {
+        this.userId = userId;
+    }
+
+    public String getFirstName() {
+        return firstName;
+    }
+
+    public void setFirstName(String firstName) {
+        this.firstName = firstName;
+    }
+
+    public String getLastName() {
+        return lastName;
+    }
+
+    public void setLastName(String lastName) {
+        this.lastName = lastName;
+    }
+
+    public String getEmail() {
+        return email;
+    }
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+}
diff --git a/dmp-backend/core/src/main/java/eu/eudat/model/persist/dmpproperties/DmpPropertiesPersist.java b/dmp-backend/core/src/main/java/eu/eudat/model/persist/dmpproperties/DmpPropertiesPersist.java
new file mode 100644
index 000000000..849af6404
--- /dev/null
+++ b/dmp-backend/core/src/main/java/eu/eudat/model/persist/dmpproperties/DmpPropertiesPersist.java
@@ -0,0 +1,27 @@
+package eu.eudat.model.persist.dmpproperties;
+
+import java.util.List;
+
+public class DmpPropertiesPersist {
+
+    private List<DmpBlueprintValue> dmpBlueprintValues;
+
+    private List<DmpContact> contacts;
+
+    public List<DmpBlueprintValue> getDmpBlueprintValues() {
+        return dmpBlueprintValues;
+    }
+
+    public void setDmpBlueprintValues(List<DmpBlueprintValue> dmpBlueprintValues) {
+        this.dmpBlueprintValues = dmpBlueprintValues;
+    }
+
+    public List<DmpContact> getContacts() {
+        return contacts;
+    }
+
+    public void setContacts(List<DmpContact> contacts) {
+        this.contacts = contacts;
+    }
+
+}
diff --git a/dmp-backend/core/src/main/java/eu/eudat/service/dmp/DmpServiceImpl.java b/dmp-backend/core/src/main/java/eu/eudat/service/dmp/DmpServiceImpl.java
index 044a79c48..f5572dd4d 100644
--- a/dmp-backend/core/src/main/java/eu/eudat/service/dmp/DmpServiceImpl.java
+++ b/dmp-backend/core/src/main/java/eu/eudat/service/dmp/DmpServiceImpl.java
@@ -1,5 +1,6 @@
 package eu.eudat.service.dmp;
 
+import com.fasterxml.jackson.core.JsonProcessingException;
 import eu.eudat.authorization.AuthorizationFlags;
 import eu.eudat.authorization.Permission;
 import eu.eudat.commons.JsonHandlingService;
@@ -56,6 +57,8 @@ public class DmpServiceImpl implements DmpService {
 
     private final MessageSource messageSource;
 
+    private final JsonHandlingService jsonHandlingService;
+
     private final EventBroker eventBroker;
 
     @Autowired
@@ -67,6 +70,7 @@ public class DmpServiceImpl implements DmpService {
             ConventionService conventionService,
             ErrorThesaurusProperties errors,
             MessageSource messageSource,
+            JsonHandlingService jsonHandlingService,
             EventBroker eventBroker) {
         this.entityManager = entityManager;
         this.authorizationService = authorizationService;
@@ -75,6 +79,7 @@ public class DmpServiceImpl implements DmpService {
         this.conventionService = conventionService;
         this.errors = errors;
         this.messageSource = messageSource;
+        this.jsonHandlingService = jsonHandlingService;
         this.eventBroker = eventBroker;
     }
 
@@ -101,7 +106,11 @@ public class DmpServiceImpl implements DmpService {
 
         data.setLabel(model.getLabel());
         data.setStatus(model.getStatus());
-        data.setProperties(model.getProperties());
+        try {
+            data.setProperties(this.jsonHandlingService.toJson(model.getProperties()));
+        } catch (JsonProcessingException e) {
+            logger.error(e.getMessage(), e);
+        }
         data.setDescription(model.getDescription());
         data.setUpdatedAt(Instant.now());
         if (isUpdate)