diff --git a/src/public/dto/subscribe.dto.ts b/src/public/dto/subscribe.dto.ts
new file mode 100644
index 0000000..44c6871
--- /dev/null
+++ b/src/public/dto/subscribe.dto.ts
@@ -0,0 +1,21 @@
+import { Transform } from 'class-transformer';
+import { IsString, Matches } from 'class-validator';
+
+const PERSIAN_DIGITS = '۰۱۲۳۴۵۶۷۸۹';
+const ARABIC_DIGITS = '٠١٢٣٤٥٦٧٨٩';
+
+export function normalizeCellNumber(value: unknown) {
+  if (typeof value !== 'string') return value;
+  return value
+    .trim()
+    .replace(/[۰-۹]/g, (digit) => String(PERSIAN_DIGITS.indexOf(digit)))
+    .replace(/[٠-٩]/g, (digit) => String(ARABIC_DIGITS.indexOf(digit)))
+    .replace(/[^\d]/g, '');
+}
+
+export class SubscribeDto {
+  @Transform(({ value }) => normalizeCellNumber(value))
+  @IsString()
+  @Matches(/^09\d{9}$/, { message: 'شماره موبایل معتبر نیست' })
+  cellNumber!: string;
+}
diff --git a/src/public/public.controller.ts b/src/public/public.controller.ts
index 610b964..6a45b55 100644
--- a/src/public/public.controller.ts
+++ b/src/public/public.controller.ts
@@ -1,4 +1,5 @@
-import { Controller, Get, Param, ParseIntPipe, Query } from '@nestjs/common';
+import { Body, Controller, Get, Param, ParseIntPipe, Post, Query } from '@nestjs/common';
+import { SubscribeDto } from './dto/subscribe.dto';
 import { PublicService } from './public.service';
 
 @Controller('public')
@@ -78,4 +79,9 @@ export class PublicController {
   listWebsiteSlots(@Query('storeSlug') storeSlug?: string) {
     return this.publicService.listWebsiteSlots(storeSlug);
   }
+
+  @Post('subscribe')
+  subscribe(@Body() dto: SubscribeDto) {
+    return this.publicService.subscribe(dto.cellNumber);
+  }
 }
diff --git a/src/public/public.service.ts b/src/public/public.service.ts
index 74fd323..3b5e790 100644
--- a/src/public/public.service.ts
+++ b/src/public/public.service.ts
@@ -1,5 +1,7 @@
 import { Injectable, NotFoundException } from '@nestjs/common';
-import { Prisma, StoreStatus } from '@prisma/client';
+import { Prisma, StoreStatus, UserRole } from '@prisma/client';
+import * as bcrypt from 'bcrypt';
+import { randomBytes } from 'crypto';
 import { PrismaService } from '../prisma/prisma.service';
 
 export type PublicCategoryTreeNode = {
@@ -267,4 +269,39 @@ export class PublicService {
 
     return { storeSlug: store.slug, items };
   }
+
+  async subscribe(cellNumber: string) {
+    const existing = await this.prisma.user.findUnique({
+      where: { cellNumber },
+      select: { id: true },
+    });
+    if (existing) {
+      return { ok: true as const, created: false };
+    }
+
+    const passwordHash = await bcrypt.hash(randomBytes(32).toString('hex'), 10);
+
+    try {
+      await this.prisma.user.create({
+        data: {
+          firstName: 'مشترک',
+          lastName: 'خبرنامه',
+          cellNumber,
+          passwordHash,
+          role: UserRole.CUSTOMER,
+          about: 'ثبت‌نام از پنجره اشتراک صفحه اصلی',
+        },
+      });
+    } catch (error) {
+      if (
+        error instanceof Prisma.PrismaClientKnownRequestError &&
+        error.code === 'P2002'
+      ) {
+        return { ok: true as const, created: false };
+      }
+      throw error;
+    }
+
+    return { ok: true as const, created: true };
+  }
 }