diff --git a/pkg/model/audit_event.go b/pkg/model/audit_event.go
index c165036..1813e8d 100644
--- a/pkg/model/audit_event.go
+++ b/pkg/model/audit_event.go
@@ -10,36 +10,36 @@ type AuditEventType int32
 // User clicked "Submit", "Accept" etc
 const AuditEventTypeAction    AuditEventType = 0
 type AuditEventDataAction struct {
-	TargetStatus uint32
+	TargetStatus uint32 `json:"TargetStatus"`
 }
 
 // User wrote a comment
 const AuditEventTypeComment   AuditEventType = 1
 type AuditEventDataComment struct {
-	Comment string
+	Comment string `json:"Comment"`
 }
 
 // User changed Model
 const AuditEventTypeChangeModel AuditEventType = 2
 type AuditEventDataChangeModel struct {
-	OldModelID      uint64
-	OldModelVersion uint64
-	NewModelID      uint64
-	NewModelVersion uint64
+	OldModelID      uint64 `json:"OldModelID"`
+	OldModelVersion uint64 `json:"OldModelVersion"`
+	NewModelID      uint64 `json:"NewModelID"`
+	NewModelVersion uint64 `json:"NewModelVersion"`
 }
 // Validator validates model
 const AuditEventTypeChangeValidatedModel AuditEventType = 3
 type AuditEventDataChangeValidatedModel struct {
-	ValidatedModelID      uint64
-	ValidatedModelVerison uint64
+	ValidatedModelID      uint64 `json:"ValidatedModelID"`
+	ValidatedModelVerison uint64 `json:"ValidatedModelVerison"`
 }
 
 // User changed DisplayName / Creator
 const AuditEventTypeChangeDisplayName AuditEventType = 4
 const AuditEventTypeChangeCreator AuditEventType = 5
 type AuditEventDataChangeName struct {
-	OldName string
-	NewName string
+	OldName string `json:"OldName"`
+	NewName string `json:"NewName"`
 }
 
 type AuditEvent struct {