diff --git a/database/sql/postgresql.go b/database/sql/postgresql.go
index 1480f4e..e0e6747 100644
--- a/database/sql/postgresql.go
+++ b/database/sql/postgresql.go
@@ -31,7 +31,8 @@ func NewPostgreSql(dsn string, options *types.SqlOptions) (*gorm.DB, error) {
 		// PreferSimpleProtocol: true,  disables implicit prepared statement usage
 
 	}), &gorm.Config{
-		Logger: newLogger,
+		Logger:                                   newLogger,
+		DisableForeignKeyConstraintWhenMigrating: true,
 		NamingStrategy: schema.NamingStrategy{
 			SingularTable: true, // 使用单数表名，启用该选项，此时，`User` 的表名应该是 `t_user`
 		}})
diff --git a/encipher/aes.go b/encipher/aes.go
index 9a54182..9a2db64 100644
--- a/encipher/aes.go
+++ b/encipher/aes.go
@@ -26,7 +26,7 @@ func New() {
 	JwtSecretLen = len(env.MeshEnv.JwtSecretKey)
 }
 
-func GenerateTokenAes(id uint, identity, client, role string, extend map[string]string) (string, error) {
+func GenerateTokenAes(id uint, identity, client, role string, owner any, extend map[string]string) (string, error) {
 	if (JwtSecretLen == 16 || JwtSecretLen == 24 || JwtSecretLen == 32) == false {
 		return "", exception.ErrAuthSecret
 	}
@@ -35,7 +35,7 @@ func GenerateTokenAes(id uint, identity, client, role string, extend map[string]
 		ID:        id,
 		Identity:  identity,
 		Extend:    extend,
-		Client:    client,
+		Owner:     owner,
 		Role:      role,
 		ExpiresAt: expireTime.Unix(),
 	}
diff --git a/exception/errors.go b/exception/errors.go
index d264a41..85f17de 100644
--- a/exception/errors.go
+++ b/exception/errors.go
@@ -30,7 +30,9 @@ var (
 	ErrJSONUnmarshal      = Errorf(18, "Unmarshal JSON")
 	ErrPasswd             = Errorf(19, "Password Error")
 
-	ErrSmsCode = Errorf(20, "SMS Code Invalid")
+	ErrSmsCode          = Errorf(20, "SMS Code Invalid")
+	ErrIdArgument       = Errorf(30, "ID Invalid Argument")
+	ErrIdentityArgument = Errorf(31, "Identity Invalid Argument")
 
 	// coustom error status
 )
diff --git a/go.mod b/go.mod
index 4c11a0c..baa2731 100644
--- a/go.mod
+++ b/go.mod
@@ -1,3 +1,3 @@
 module git.apinb.com/bsm-sdk/engine
 
-go 1.22
\ No newline at end of file
+go 1.22
diff --git a/service/context.go b/service/context.go
index 6a53e4a..3d52993 100644
--- a/service/context.go
+++ b/service/context.go
@@ -7,7 +7,6 @@ import (
 	"git.apinb.com/bsm-sdk/engine/encipher"
 	"git.apinb.com/bsm-sdk/engine/exception"
 	"git.apinb.com/bsm-sdk/engine/types"
-	"git.apinb.com/bsm-sdk/engine/utils"
 	"google.golang.org/grpc/metadata"
 )
 
@@ -38,11 +37,6 @@ func ParseMetaCtx(ctx context.Context, opts *ParseOptions) (*types.JwtClaims, er
 		if !strings.Contains(claims.Role, opts.RoleValue) {
 			return nil, exception.ErrPermissionDenied
 		}
-		if opts.MustPrivateAllow {
-			if utils.IsPublicIP(claims.Client) {
-				return nil, exception.ErrPermissionDenied
-			}
-		}
 	}
 
 	return claims, nil
diff --git a/types/mcs.go b/types/mcs.go
new file mode 100644
index 0000000..e35ed9d
--- /dev/null
+++ b/types/mcs.go
@@ -0,0 +1,56 @@
+package types
+
+type Message struct {
+	TimeSequence   int64  //消息创建的时间戳
+	SessionIdent   string // 会话唯一标识
+	SenderId       int64
+	SenderIdentity string
+	TargetId       int64
+	TargetIdentity string
+	GroupId        int64  //群组唯一ID，在群聊消息的时候使用到。不使用时则为空
+	GroupIdentity  string //群组唯一码，在群聊消息的时候使用到。不使用时则为空
+	MsgType        int32  //0异常提示，1单聊，2群聊，3系统
+	BodyType       int32  //正文类型：0文本，1图片，2，视频，3.....
+	Body           string
+	Status         int32 //消息状态:0待续，1存储成功，2送达确认，3已读确认，-1撤回
+}
+
+type ChatMessage struct {
+	TimeSequence   int64  //消息创建的时间戳
+	SessionIdent   string // 会话唯一标识
+	SenderId       int64
+	SenderIdentity string
+	TargetId       int64
+	TargetIdentity string
+	BodyType       int32 //正文类型：0文本，1图片，2，视频，3.....
+	Body           string
+	Status         int32 //消息状态:0待续，1存储成功，2送达确认，3已读确认，-1撤回
+}
+
+type GroupMessage struct {
+	TimeSequence   int64  //消息创建的时间戳
+	GroupId        int64  //群组唯一ID，在群聊消息的时候使用到。不使用时则为空
+	GroupIdentity  string //群组唯一标识，在群聊消息的时候使用到。不使用时则为空
+	SenderId       int64
+	SenderIdentity string
+	BodyType       int32 //正文类型：0文本，1图片，2，视频，3.....
+	Body           string
+	Status         int32 //消息状态:0待续，1存储成功，2送达确认，3已读确认，-1撤回
+}
+
+type SystemMessage struct {
+	TimeSequence   int64 //消息创建的时间戳
+	TargetId       int64
+	TargetIdentity string
+	BodyType       int32 //正文类型：0文本，1图片，2，视频，3.....
+	Body           string
+	Status         int32 //消息状态:0待续，1存储成功，2送达确认，3已读确认，-1撤回
+}
+
+type EventMessage struct {
+	TimeSequence   int64 //消息创建的时间戳
+	TargetId       int64
+	TargetIdentity string
+	EventType      int32 //事件类型：0 正在输入，已送达...
+	Status         int32 //消息状态:0待续，1存储成功，2送达确认，3已读确认，-1撤回
+}
diff --git a/utils/identity.go b/utils/identity.go
index d342eb8..f0e70ff 100644
--- a/utils/identity.go
+++ b/utils/identity.go
@@ -5,6 +5,7 @@ import (
 
 	"github.com/google/uuid"
 	"github.com/jaevor/go-nanoid"
+	ulid "github.com/oklog/ulid/v2"
 )
 
 func NanoID() string {
@@ -13,7 +14,7 @@ func NanoID() string {
 }
 
 func NanoIDInt() (id int64, err error) {
-	decenaryID, err := nanoid.CustomASCII("0123456789", 20)
+	decenaryID, err := nanoid.CustomASCII("0123456789", 18)
 	if err != nil {
 		return
 	}
@@ -24,3 +25,7 @@ func NanoIDInt() (id int64, err error) {
 func UUID() string {
 	return uuid.NewString()
 }
+
+func ULID() string {
+	return ulid.Make().String()
+}