diff --git a/backend/src/event/EVENT_ADMIN_USER_DELETE.ts b/backend/src/event/EVENT_ADMIN_USER_DELETE.ts
new file mode 100644
index 000000000..bfd5be740
--- /dev/null
+++ b/backend/src/event/EVENT_ADMIN_USER_DELETE.ts
@@ -0,0 +1,6 @@
+import { User as DbUser } from '@entity/User'
+import { Event as DbEvent } from '@entity/Event'
+import { Event, EventType } from './Event'
+
+export const EVENT_ADMIN_USER_DELETE = async (user: DbUser, moderator: DbUser): Promise<DbEvent> =>
+  Event(EventType.ADMIN_USER_DELETE, user, moderator).save()
diff --git a/backend/src/event/EVENT_ADMIN_USER_ROLE_SET.ts b/backend/src/event/EVENT_ADMIN_USER_ROLE_SET.ts
new file mode 100644
index 000000000..3be825ad4
--- /dev/null
+++ b/backend/src/event/EVENT_ADMIN_USER_ROLE_SET.ts
@@ -0,0 +1,8 @@
+import { User as DbUser } from '@entity/User'
+import { Event as DbEvent } from '@entity/Event'
+import { Event, EventType } from './Event'
+
+export const EVENT_ADMIN_USER_ROLE_SET = async (
+  user: DbUser,
+  moderator: DbUser,
+): Promise<DbEvent> => Event(EventType.ADMIN_USER_ROLE_SET, user, moderator).save()
diff --git a/backend/src/event/EVENT_ADMIN_USER_UNDELETE.ts b/backend/src/event/EVENT_ADMIN_USER_UNDELETE.ts
new file mode 100644
index 000000000..eb861dbf1
--- /dev/null
+++ b/backend/src/event/EVENT_ADMIN_USER_UNDELETE.ts
@@ -0,0 +1,8 @@
+import { User as DbUser } from '@entity/User'
+import { Event as DbEvent } from '@entity/Event'
+import { Event, EventType } from './Event'
+
+export const EVENT_ADMIN_USER_UNDELETE = async (
+  user: DbUser,
+  moderator: DbUser,
+): Promise<DbEvent> => Event(EventType.ADMIN_USER_UNDELETE, user, moderator).save()
diff --git a/backend/src/event/EVENT_EMAIL_FORGOT_PASSWORD.ts b/backend/src/event/EVENT_EMAIL_FORGOT_PASSWORD.ts
index 4160ce244..f7e328369 100644
--- a/backend/src/event/EVENT_EMAIL_FORGOT_PASSWORD.ts
+++ b/backend/src/event/EVENT_EMAIL_FORGOT_PASSWORD.ts
@@ -3,4 +3,4 @@ import { Event as DbEvent } from '@entity/Event'
 import { Event, EventType } from './Event'
 
 export const EVENT_EMAIL_FORGOT_PASSWORD = async (user: DbUser): Promise<DbEvent> =>
-  Event(EventType.EMAIL_FORGOT_PASSWORD, user, user).save()
+  Event(EventType.EMAIL_FORGOT_PASSWORD, user, { id: 0 } as DbUser).save()
diff --git a/backend/src/event/Event.ts b/backend/src/event/Event.ts
index 60da91b70..901bc33ff 100644
--- a/backend/src/event/Event.ts
+++ b/backend/src/event/Event.ts
@@ -47,6 +47,9 @@ export { EVENT_ADMIN_CONTRIBUTION_LINK_DELETE } from './EVENT_ADMIN_CONTRIBUTION
 export { EVENT_ADMIN_CONTRIBUTION_LINK_UPDATE } from './EVENT_ADMIN_CONTRIBUTION_LINK_UPDATE'
 export { EVENT_ADMIN_CONTRIBUTION_MESSAGE_CREATE } from './EVENT_ADMIN_CONTRIBUTION_MESSAGE_CREATE'
 export { EVENT_ADMIN_SEND_CONFIRMATION_EMAIL } from './EVENT_ADMIN_SEND_CONFIRMATION_EMAIL'
+export { EVENT_ADMIN_USER_DELETE } from './EVENT_ADMIN_USER_DELETE'
+export { EVENT_ADMIN_USER_UNDELETE } from './EVENT_ADMIN_USER_UNDELETE'
+export { EVENT_ADMIN_USER_ROLE_SET } from './EVENT_ADMIN_USER_ROLE_SET'
 export { EVENT_CONTRIBUTION_CREATE } from './EVENT_CONTRIBUTION_CREATE'
 export { EVENT_CONTRIBUTION_DELETE } from './EVENT_CONTRIBUTION_DELETE'
 export { EVENT_CONTRIBUTION_UPDATE } from './EVENT_CONTRIBUTION_UPDATE'
@@ -63,3 +66,4 @@ export { EVENT_TRANSACTION_RECEIVE } from './EVENT_TRANSACTION_RECEIVE'
 export { EVENT_TRANSACTION_LINK_CREATE } from './EVENT_TRANSACTION_LINK_CREATE'
 export { EVENT_TRANSACTION_LINK_DELETE } from './EVENT_TRANSACTION_LINK_DELETE'
 export { EVENT_TRANSACTION_LINK_REDEEM } from './EVENT_TRANSACTION_LINK_REDEEM'
+export { EVENT_USER_INFO_UPDATE } from './EVENT_USER_INFO_UPDATE'
diff --git a/backend/src/event/EventType.ts b/backend/src/event/EventType.ts
index cc277e589..58d03c84b 100644
--- a/backend/src/event/EventType.ts
+++ b/backend/src/event/EventType.ts
@@ -11,6 +11,9 @@ export enum EventType {
   ADMIN_CONTRIBUTION_LINK_UPDATE = 'ADMIN_CONTRIBUTION_LINK_UPDATE',
   ADMIN_CONTRIBUTION_MESSAGE_CREATE = 'ADMIN_CONTRIBUTION_MESSAGE_CREATE',
   ADMIN_SEND_CONFIRMATION_EMAIL = 'ADMIN_SEND_CONFIRMATION_EMAIL',
+  ADMIN_USER_DELETE = 'ADMIN_USER_DELETE',
+  ADMIN_USER_UNDELETE = 'ADMIN_USER_UNDELETE',
+  ADMIN_USER_ROLE_SET = 'ADMIN_USER_ROLE_SET',
   CONTRIBUTION_CREATE = 'CONTRIBUTION_CREATE',
   CONTRIBUTION_DELETE = 'CONTRIBUTION_DELETE',
   CONTRIBUTION_UPDATE = 'CONTRIBUTION_UPDATE',
diff --git a/backend/src/graphql/resolver/UserResolver.ts b/backend/src/graphql/resolver/UserResolver.ts
index 196110a31..f51d0fdac 100644
--- a/backend/src/graphql/resolver/UserResolver.ts
+++ b/backend/src/graphql/resolver/UserResolver.ts
@@ -60,6 +60,9 @@ import {
   EVENT_LOGOUT,
   EVENT_EMAIL_FORGOT_PASSWORD,
   EVENT_USER_INFO_UPDATE,
+  EVENT_USER_ROLE_SET,
+  EVENT_ADMIN_USER_ROLE_SET,
+  EVENT_ADMIN_USER_DELETE,
 } from '@/event/Event'
 import { getUserCreations } from './util/creations'
 import { isValidPassword } from '@/password/EncryptorUtils'
@@ -585,7 +588,6 @@ export class UserResolver {
       await queryRunner.release()
     }
     logger.info('updateUserInfos() successfully finished...')
-
     await EVENT_USER_INFO_UPDATE(user)
 
     return true
@@ -713,8 +715,8 @@ export class UserResolver {
       throw new LogError('Could not find user with given ID', userId)
     }
     // administrator user changes own role?
-    const moderatorUser = getUser(context)
-    if (moderatorUser.id === userId) {
+    const moderator = getUser(context)
+    if (moderator.id === userId) {
       throw new LogError('Administrator can not change his own role')
     }
     // change isAdmin
@@ -735,6 +737,7 @@ export class UserResolver {
         break
     }
     await user.save()
+    await EVENT_ADMIN_USER_ROLE_SET(user, moderator)
     const newUser = await DbUser.findOne({ id: userId })
     return newUser ? newUser.isAdmin : null
   }
@@ -751,19 +754,20 @@ export class UserResolver {
       throw new LogError('Could not find user with given ID', userId)
     }
     // moderator user disabled own account?
-    const moderatorUser = getUser(context)
-    if (moderatorUser.id === userId) {
+    const moderator = getUser(context)
+    if (moderator.id === userId) {
       throw new LogError('Moderator can not delete his own account')
     }
     // soft-delete user
     await user.softRemove()
+    await EVENT_ADMIN_USER_DELETE(user, moderator)
     const newUser = await DbUser.findOne({ id: userId }, { withDeleted: true })
     return newUser ? newUser.deletedAt : null
   }
 
   @Authorized([RIGHTS.ADMIN_UNDELETE_USER])
   @Mutation(() => Date, { nullable: true })
-  async unDeleteUser(@Arg('userId', () => Int) userId: number): Promise<Date | null> {
+  async unDeleteUser(@Arg('userId', () => Int) userId: number, @Ctx() context: Context,): Promise<Date | null> {
     const user = await DbUser.findOne({ id: userId }, { withDeleted: true })
     if (!user) {
       throw new LogError('Could not find user with given ID', userId)
@@ -772,6 +776,7 @@ export class UserResolver {
       throw new LogError('User is not deleted')
     }
     await user.recover()
+    await EVENT_ADMIN_USER_UNDELETE(user, getUser(context))
     return null
   }