diff --git a/src/services/main/paymentManager.ts b/src/services/main/paymentManager.ts
index 1e8de448..8d5b6cd8 100644
--- a/src/services/main/paymentManager.ts
+++ b/src/services/main/paymentManager.ts
@@ -234,10 +234,13 @@ export default class {
         if (!Number.isInteger(sats)) {
             throw new Error("millisats amount must be integer sats amount")
         }
+        if (!key.linkedApplication) {
+            throw new Error("cannot handle lnurl for non application user")
+        }
         const invoice = await this.NewInvoice(key.user.user_id, {
             amountSats: sats,
             memo: defaultLnurlPayMetadata
-        })
+        }, { expiry: defaultInvoiceExpiry, linkedApplication: key.linkedApplication })
         return {
             pr: invoice.invoice,
             routes: []
diff --git a/src/services/storage/entity/UserEphemeralKey.ts b/src/services/storage/entity/UserEphemeralKey.ts
index f81ac131..52c9a706 100644
--- a/src/services/storage/entity/UserEphemeralKey.ts
+++ b/src/services/storage/entity/UserEphemeralKey.ts
@@ -1,5 +1,6 @@
 import { Entity, PrimaryGeneratedColumn, Column, Index, Check, ManyToOne, JoinColumn, CreateDateColumn, UpdateDateColumn } from "typeorm"
 import { User } from "./User.js"
+import { Application } from "./Application.js"
 export type EphemeralKeyType = 'balanceCheck' | 'payInfo' | 'pay' | 'withdraw'
 @Entity()
 export class UserEphemeralKey {
@@ -11,6 +12,10 @@ export class UserEphemeralKey {
     @JoinColumn()
     user: User
 
+    @ManyToOne(type => Application, { eager: true })
+    @JoinColumn()
+    linkedApplication: Application | null
+
     @Column()
     @Index({ unique: true })
     key: string
diff --git a/src/services/storage/paymentStorage.ts b/src/services/storage/paymentStorage.ts
index eebfa403..ee72d306 100644
--- a/src/services/storage/paymentStorage.ts
+++ b/src/services/storage/paymentStorage.ts
@@ -163,11 +163,12 @@ export default class {
     }
 
 
-    async AddUserEphemeralKey(userId: string, keyType: EphemeralKeyType, entityManager = this.DB): Promise<UserEphemeralKey> {
+    async AddUserEphemeralKey(userId: string, keyType: EphemeralKeyType, linkedApplication?: Application, entityManager = this.DB): Promise<UserEphemeralKey> {
         const newKey = entityManager.getRepository(UserEphemeralKey).create({
             user: await this.userStorage.GetUser(userId, entityManager),
             key: crypto.randomBytes(31).toString('hex'),
-            type: keyType
+            type: keyType,
+            linkedApplication
         })
         return entityManager.getRepository(UserEphemeralKey).save(newKey)
     }