diff --git a/enforcer.go b/enforcer.go
index 450d174..3b83060 100644
--- a/enforcer.go
+++ b/enforcer.go
@@ -613,7 +613,8 @@ func (e *Enforcer) sessionUnSerialize(v interface{}) *model.Session {
 	if err != nil {
 		return nil
 	}
-	session, err := serializer.UnSerialize(bytes)
+	session := &model.Session{}
+	err = serializer.UnSerialize(bytes, session)
 	if err != nil {
 		return nil
 	}
diff --git a/persist/json_adapter.go b/persist/json_adapter.go
index 44b3c64..2feaece 100644
--- a/persist/json_adapter.go
+++ b/persist/json_adapter.go
@@ -2,7 +2,6 @@ package persist
 
 import (
 	"encoding/json"
-	"github.com/weloe/token-go/model"
 )
 
 type JsonAdapter struct {
@@ -13,15 +12,18 @@ func NewJsonAdapter() *JsonAdapter {
 	return &JsonAdapter{NewDefaultAdapter()}
 }
 
-func (j *JsonAdapter) Serialize(session *model.Session) ([]byte, error) {
-	return json.Marshal(session)
-}
-
-func (j *JsonAdapter) UnSerialize(bytes []byte) (*model.Session, error) {
-	s := &model.Session{}
-	err := json.Unmarshal(bytes, s)
+func (j *JsonAdapter) Serialize(data interface{}) ([]byte, error) {
+	serializedData, err := json.Marshal(data)
 	if err != nil {
 		return nil, err
 	}
-	return s, nil
+	return serializedData, nil
+}
+
+func (j *JsonAdapter) UnSerialize(data []byte, result interface{}) error {
+	err := json.Unmarshal(data, &result)
+	if err != nil {
+		return err
+	}
+	return nil
 }
diff --git a/persist/serializer_adapter.go b/persist/serializer_adapter.go
index de63919..9a0c632 100644
--- a/persist/serializer_adapter.go
+++ b/persist/serializer_adapter.go
@@ -1,9 +1,7 @@
 package persist
 
-import "github.com/weloe/token-go/model"
-
 type SerializerAdapter interface {
 	Adapter
-	Serialize(*model.Session) ([]byte, error)
-	UnSerialize([]byte) (*model.Session, error)
+	Serialize(data interface{}) ([]byte, error)
+	UnSerialize([]byte, interface{}) error
 }