diff --git a/event_message.go b/event_message.go
index 3eec53c..1bc4e20 100644
--- a/event_message.go
+++ b/event_message.go
@@ -1,9 +1,9 @@
 package ferstream
 
 import (
+	"github.com/kumparan/go-utils"
 	"google.golang.org/protobuf/proto"
 
-	"github.com/kumparan/go-utils"
 	"github.com/kumparan/tapao"
 	"github.com/pkg/errors"
 )
@@ -12,6 +12,7 @@ type (
 	// NatsEvent :nodoc:
 	NatsEvent struct {
 		ID       int64  `json:"id"`
+		IDString string `json:"id_string"`
 		UserID   int64  `json:"user_id"`
 		TenantID int64  `json:"tenant_id"`
 		Subject  string `json:"subject"` // empty on publish
@@ -66,6 +67,14 @@ func (n *NatsEvent) GetSubject() string {
 	return n.Subject
 }
 
+// GetIDString :nodoc:
+func (n *NatsEvent) GetIDString() string {
+	if n == nil {
+		return ""
+	}
+	return n.IDString
+}
+
 // NewNatsEventMessage :nodoc:
 func NewNatsEventMessage() *NatsEventMessage {
 	return &NatsEventMessage{}
@@ -78,7 +87,7 @@ func (n *NatsEventMessage) Build() (data []byte, err error) {
 	}
 
 	if n.NatsEvent == nil {
-		n.wrapError(errors.New("empty nats nats event"))
+		n.wrapError(errors.New("empty nats event"))
 		return nil, n.Error
 	}
 
@@ -93,7 +102,7 @@ func (n *NatsEventMessage) Build() (data []byte, err error) {
 
 // WithEvent :nodoc:
 func (n *NatsEventMessage) WithEvent(e *NatsEvent) *NatsEventMessage {
-	if e.GetID() <= 0 {
+	if e.GetID() <= 0 && e.GetIDString() == "" {
 		n.wrapError(errors.New("empty id"))
 		return n
 	}
diff --git a/event_message_test.go b/event_message_test.go
index 824adfd..e0fceff 100644
--- a/event_message_test.go
+++ b/event_message_test.go
@@ -179,21 +179,39 @@ func TestNatsEventMessage_Build(t *testing.T) {
 }
 
 func TestNatsEventMessage_ToJSONString(t *testing.T) {
-	natsEvent := &NatsEvent{
-		ID:     123,
-		UserID: 333,
-	}
-	body := []string{"test"}
+	t.Run("success", func(t *testing.T) {
+		natsEvent := &NatsEvent{
+			ID:     123,
+			UserID: 333,
+		}
+		body := []string{"test"}
 
-	msg := NewNatsEventMessage().
-		WithEvent(natsEvent).
-		WithBody(body)
+		msg := NewNatsEventMessage().
+			WithEvent(natsEvent).
+			WithBody(body)
 
-	parsed, err := msg.ToJSONString()
-	require.NoError(t, err)
+		parsed, err := msg.ToJSONString()
+		require.NoError(t, err)
+		expectedRes := "{\"NatsEvent\":{\"id\":123,\"id_string\":\"\",\"user_id\":333,\"tenant_id\":0,\"subject\":\"\"},\"body\":\"[\\\"test\\\"]\",\"old_body\":\"\",\"request\":null,\"error\":null}"
+		assert.Equal(t, expectedRes, parsed)
+	})
 
-	expectedRes := "{\"NatsEvent\":{\"id\":123,\"user_id\":333,\"tenant_id\":0,\"subject\":\"\"},\"body\":\"[\\\"test\\\"]\",\"old_body\":\"\",\"request\":null,\"error\":null}"
-	assert.Equal(t, expectedRes, parsed)
+	t.Run("success with IDString", func(t *testing.T) {
+		natsEvent := &NatsEvent{
+			UserID:   333,
+			IDString: "630484ae00f0d71df588a0ab",
+		}
+		body := []string{"test"}
+
+		msg := NewNatsEventMessage().
+			WithEvent(natsEvent).
+			WithBody(body)
+
+		parsed, err := msg.ToJSONString()
+		require.NoError(t, err)
+		expectedRes := "{\"NatsEvent\":{\"id\":0,\"id_string\":\"630484ae00f0d71df588a0ab\",\"user_id\":333,\"tenant_id\":0,\"subject\":\"\"},\"body\":\"[\\\"test\\\"]\",\"old_body\":\"\",\"request\":null,\"error\":null}"
+		assert.Equal(t, expectedRes, parsed)
+	})
 }
 
 func TestNatsEventMessage_ToJSONByte(t *testing.T) {