diff --git a/apps/core/src/modules/activity/activity.controller.ts b/apps/core/src/modules/activity/activity.controller.ts
index 35fceb4d..813a3d15 100644
--- a/apps/core/src/modules/activity/activity.controller.ts
+++ b/apps/core/src/modules/activity/activity.controller.ts
@@ -85,7 +85,16 @@ export class ActivityController {
         readerIds.push(item.readerId)
       }
     }
-    const readers = await this.readerService.findReaderInIds(readerIds)
+    const readers = await this.readerService
+      .findReaderInIds(readerIds)
+      .then((arr) => {
+        return arr.map((item) => {
+          return snakecaseKeys({
+            ...item,
+            id: item._id.toHexString(),
+          })
+        })
+      })
 
     return {
       data: keyBy(
diff --git a/apps/core/src/modules/activity/activity.service.ts b/apps/core/src/modules/activity/activity.service.ts
index c5ae5d45..e4968edf 100644
--- a/apps/core/src/modules/activity/activity.service.ts
+++ b/apps/core/src/modules/activity/activity.service.ts
@@ -43,6 +43,7 @@ import { CommentService } from '../comment/comment.service'
 import { ConfigsService } from '../configs/configs.service'
 import { NoteService } from '../note/note.service'
 import { PostService } from '../post/post.service'
+import { ReaderService } from '../reader/reader.service'
 import { Activity } from './activity.constant'
 import { ActivityModel } from './activity.model'
 import {
@@ -79,6 +80,7 @@ export class ActivityService implements OnModuleInit, OnModuleDestroy {
     private readonly postService: PostService,
     @Inject(forwardRef(() => NoteService))
     private readonly noteService: NoteService,
+    private readonly readerService: ReaderService,
   ) {
     this.logger = new Logger(ActivityService.name)
   }
@@ -360,6 +362,12 @@ export class ActivityService implements OnModuleInit, OnModuleDestroy {
 
     Reflect.deleteProperty(presenceData, 'ts')
     const serializedPresenceData = omit(presenceData, 'ip')
+    if (data.readerId) {
+      const reader = await this.readerService.findReaderInIds([data.readerId])
+      if (reader.length) {
+        Object.assign(serializedPresenceData, { reader: reader[0] })
+      }
+    }
 
     const roomJoinedAtMap =
       await this.webGateway.getSocketRoomJoinedAtMap(socket)
diff --git a/packages/api-client/controllers/activity.ts b/packages/api-client/controllers/activity.ts
index b95208cf..d602a54a 100644
--- a/packages/api-client/controllers/activity.ts
+++ b/packages/api-client/controllers/activity.ts
@@ -1,6 +1,7 @@
 import type { IRequestAdapter } from '~/interfaces/adapter'
 import type { IController } from '~/interfaces/controller'
 import type { IRequestHandler } from '~/interfaces/request'
+import type { AuthUser } from '~/models'
 import type {
   ActivityPresence,
   LastYearPublication,
@@ -49,7 +50,10 @@ export class ActivityController<ResponseWrapper> implements IController {
    * @support core >= 5.0.0
    */
   getPresence(roomName: string) {
-    return this.proxy.presence.get<Record<string, ActivityPresence>>({
+    return this.proxy.presence.get<{
+      data: Record<string, ActivityPresence>
+      readers: Record<string, AuthUser>
+    }>({
       params: {
         room_name: roomName,
       },
diff --git a/packages/api-client/models/auth.ts b/packages/api-client/models/auth.ts
new file mode 100644
index 00000000..46be8d0b
--- /dev/null
+++ b/packages/api-client/models/auth.ts
@@ -0,0 +1,8 @@
+export interface AuthUser {
+  id: string
+  email: string
+  isOwner: boolean
+  image: string
+  name: string
+  provider: string
+}
diff --git a/packages/api-client/models/index.ts b/packages/api-client/models/index.ts
index 14609543..bb968436 100644
--- a/packages/api-client/models/index.ts
+++ b/packages/api-client/models/index.ts
@@ -1,6 +1,7 @@
 export * from './activity'
 export * from './aggregate'
 export * from './ai'
+export * from './auth'
 export * from './base'
 export * from './category'
 export * from './comment'