diff --git a/grpcapi/groupsmanagement.pb.go b/grpcapi/groupsmanagement.pb.go
index f93682f..fd3abfc 100644
--- a/grpcapi/groupsmanagement.pb.go
+++ b/grpcapi/groupsmanagement.pb.go
@@ -224,6 +224,7 @@ type GetGroupsRequest struct {
 	unknownFields protoimpl.UnknownFields
 
 	Namespaces []string `protobuf:"bytes,6,rep,name=namespaces,proto3" json:"namespaces,omitempty"`
+	Member     string   `protobuf:"bytes,7,opt,name=member,proto3" json:"member,omitempty"`
 }
 
 func (x *GetGroupsRequest) Reset() {
@@ -265,12 +266,19 @@ func (x *GetGroupsRequest) GetNamespaces() []string {
 	return nil
 }
 
+func (x *GetGroupsRequest) GetMember() string {
+	if x != nil {
+		return x.Member
+	}
+	return ""
+}
+
 type GetGroupsResponse struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	Groups []*Group `protobuf:"bytes,7,rep,name=groups,proto3" json:"groups,omitempty"`
+	Groups []*Group `protobuf:"bytes,8,rep,name=groups,proto3" json:"groups,omitempty"`
 }
 
 func (x *GetGroupsResponse) Reset() {
@@ -317,7 +325,7 @@ type GetGroupsBatchRequest struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	Groupids []string `protobuf:"bytes,6,rep,name=groupids,proto3" json:"groupids,omitempty"`
+	Groupids []string `protobuf:"bytes,10,rep,name=groupids,proto3" json:"groupids,omitempty"`
 }
 
 func (x *GetGroupsBatchRequest) Reset() {
@@ -364,7 +372,7 @@ type GetGroupsBatchResponse struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	Groups []*Group `protobuf:"bytes,7,rep,name=groups,proto3" json:"groups,omitempty"`
+	Groups []*Group `protobuf:"bytes,11,rep,name=groups,proto3" json:"groups,omitempty"`
 }
 
 func (x *GetGroupsBatchResponse) Reset() {
@@ -411,8 +419,8 @@ type SubscribeRequest struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	Groupid  string `protobuf:"bytes,8,opt,name=groupid,proto3" json:"groupid,omitempty"`
-	Memberid string `protobuf:"bytes,9,opt,name=memberid,proto3" json:"memberid,omitempty"`
+	Groupid  string `protobuf:"bytes,20,opt,name=groupid,proto3" json:"groupid,omitempty"`
+	Memberid string `protobuf:"bytes,21,opt,name=memberid,proto3" json:"memberid,omitempty"`
 }
 
 func (x *SubscribeRequest) Reset() {
@@ -466,7 +474,7 @@ type SubscribeResponse struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	Ok bool `protobuf:"varint,10,opt,name=ok,proto3" json:"ok,omitempty"`
+	Ok bool `protobuf:"varint,22,opt,name=ok,proto3" json:"ok,omitempty"`
 }
 
 func (x *SubscribeResponse) Reset() {
@@ -513,8 +521,8 @@ type UnsubscribeRequest struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	Groupid  string `protobuf:"bytes,8,opt,name=groupid,proto3" json:"groupid,omitempty"`
-	Memberid string `protobuf:"bytes,9,opt,name=memberid,proto3" json:"memberid,omitempty"`
+	Groupid  string `protobuf:"bytes,30,opt,name=groupid,proto3" json:"groupid,omitempty"`
+	Memberid string `protobuf:"bytes,31,opt,name=memberid,proto3" json:"memberid,omitempty"`
 }
 
 func (x *UnsubscribeRequest) Reset() {
@@ -568,7 +576,7 @@ type UnsubscribeResponse struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	Ok bool `protobuf:"varint,10,opt,name=ok,proto3" json:"ok,omitempty"`
+	Ok bool `protobuf:"varint,32,opt,name=ok,proto3" json:"ok,omitempty"`
 }
 
 func (x *UnsubscribeResponse) Reset() {
@@ -628,62 +636,63 @@ var file_groupsmanagement_proto_rawDesc = []byte{
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+	0x69, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
diff --git a/grpcapi/groupsmanagement.proto b/grpcapi/groupsmanagement.proto
index edab5d9..61fea9c 100644
--- a/grpcapi/groupsmanagement.proto
+++ b/grpcapi/groupsmanagement.proto
@@ -34,34 +34,35 @@ message GetGroupResponse {
 
 message GetGroupsRequest {
     repeated string namespaces = 6;
+    string member = 7;
 }
 
 message GetGroupsResponse {
-    repeated Group groups = 7;
+    repeated Group groups = 8;
 }
 
 message GetGroupsBatchRequest {
-    repeated string groupids = 6;
+    repeated string groupids = 10;
 }
 
 message GetGroupsBatchResponse {
-    repeated Group groups = 7;
+    repeated Group groups = 11;
 }
 
 message SubscribeRequest {
-    string groupid = 8;
-    string memberid = 9;
+    string groupid = 20;
+    string memberid = 21;
 }
 
 message SubscribeResponse {
-    bool ok = 10;
+    bool ok = 22;
 }
 
 message UnsubscribeRequest {
-    string groupid = 11;
-    string memberid = 12;
+    string groupid = 30;
+    string memberid = 31;
 }
 
 message UnsubscribeResponse {
-    bool ok = 13;
+    bool ok = 32;
 }
\ No newline at end of file
diff --git a/grpcapi/grpcapi.go b/grpcapi/grpcapi.go
index 475c000..f4d99e6 100644
--- a/grpcapi/grpcapi.go
+++ b/grpcapi/grpcapi.go
@@ -53,7 +53,7 @@ func (s GroupsManagementServerImpl) GetGroup(ctx context.Context, req *GetGroupR
 	return &GetGroupResponse{Group: response}, nil
 }
 func (s GroupsManagementServerImpl) GetGroups(ctx context.Context, req *GetGroupsRequest) (*GetGroupsResponse, error) {
-	responses, err := s.handler.GetGroups(req.Namespaces)
+	responses, err := s.handler.GetGroups(req.Namespaces, req.Member)
 	if err != nil {
 		return nil, status.Errorf(codes.NotFound, "could not get groups : %v", err)
 	}
diff --git a/handlers/groups.go b/handlers/groups.go
index 7f2701a..1e04246 100644
--- a/handlers/groups.go
+++ b/handlers/groups.go
@@ -25,8 +25,23 @@ func (h GroupsManagementHandler) GetGroup(id string) (group *storage.Group, err
 	return
 }
 
-func (h GroupsManagementHandler) GetGroups(namespaces []string) (groups []storage.Group, err error) {
-	groups, err = h.storage.GetGroups(namespaces)
+func (h GroupsManagementHandler) GetGroups(namespaces []string, member string) (groups []storage.Group, err error) {
+	groups = []storage.Group{}
+	g, err := h.storage.GetGroups(namespaces)
+	if err != nil {
+		return
+	}
+	if member == "" {
+		return g, nil
+	}
+	for _, group := range g {
+		for _, m := range group.Members {
+			if m == member {
+				groups = append(groups, group)
+				break
+			}
+		}
+	}
 	return
 }