diff --git a/package.json b/package.json
index 9e68671..a92a049 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,8 @@
   },
   "homepage": "https://github.com/lukso-network/lukso-playground#readme",
   "scripts": {
-    "lint": "eslint . --ext .ts,.js"
+    "lint": "eslint . --ext .ts,.js",
+    "lint:fix": "eslint . --ext .ts,.js --fix"
   },
   "devDependencies": {
     "@erc725/erc725.js": "^0.23.0",
diff --git a/universal-profile/register-asset-backend.ts b/universal-profile/register-asset-backend.ts
new file mode 100644
index 0000000..09cf244
--- /dev/null
+++ b/universal-profile/register-asset-backend.ts
@@ -0,0 +1,66 @@
+import { ethers } from 'ethers';
+
+import { ERC725 } from '@erc725/erc725.js';
+import LSP12Schema from '@erc725/erc725.js/schemas/LSP12IssuedAssets.json';
+
+import UniversalProfileArtifact from '@lukso/lsp-smart-contracts/artifacts/UniversalProfile.json';
+import { INTERFACE_IDS } from '@lukso/lsp-smart-contracts';
+
+// We will register the issued assets by setting the following LSP12 data keys
+// - LSP12IssuedAssets[]
+// - LSP12IssuedAssetsMap:<asset-address>
+
+// add the type of asset (LSP7 or LSP8) and their address in the object list below
+const issuedAssets = [
+  {
+    interfaceId: INTERFACE_IDS.LSP7DigitalAsset,
+    address: '0xf7056bdE90f494F55967858F1e9E4AFB1026C5C8',
+  },
+  {
+    interfaceId: INTERFACE_IDS.LSP8IdentifiableDigitalAsset,
+    address: '0xf651b88925C0B6C81Ad6f658a2F104226d837F60',
+  },
+  //   {
+  //     interfaceId: LSP7 or LSP8 interface ID (or other),
+  //     address: '0xasset-address',
+  //   },
+];
+
+// setup: get the private key of your main controller behind the Universal Profile extension
+// or any controller that has access to the Universal Profile
+const UNIVERSAL_PROFILE_ADDRESS = '0x9fc7e5095A054dfA3c6b237E0e5d686638394248';
+const PRIVATE_KEY = '0x...';
+const RPC_ENDPOINT = 'https://rpc.testnet.lukso.network';
+
+const provider = new ethers.JsonRpcProvider(RPC_ENDPOINT);
+const myWallet = new ethers.Wallet(PRIVATE_KEY, provider);
+
+// 1. encode the data keys related to LSP12IssuedAssets[]
+const erc725 = new ERC725(LSP12Schema, UNIVERSAL_PROFILE_ADDRESS, RPC_ENDPOINT, {
+  ipfsGateway: 'https://api.universalprofile.cloud/ipfs',
+});
+
+const allAssetAddresses = issuedAssets.map((asset) => asset.address);
+
+const issuedAssetsMap = issuedAssets.map((asset, index) => {
+  return {
+    keyName: 'LSP12IssuedAssetsMap:<address>',
+    dynamicKeyParts: asset.address,
+    value: [asset.interfaceId, ERC725.encodeValueType('uint128', index)],
+  };
+});
+
+const { keys: lsp12DataKeys, values: lsp12Values } = erc725.encodeData([
+  { keyName: 'LSP12IssuedAssets[]', value: allAssetAddresses },
+  ...issuedAssetsMap,
+]);
+
+// 2. create an instance of your Universal Profile contract
+const myUPContract = new ethers.Contract(
+  UNIVERSAL_PROFILE_ADDRESS,
+  UniversalProfileArtifact.abi,
+  myWallet,
+);
+
+// 3. set these data keys created at step 1. using `setDataBatch` on the UP address
+await myUPContract.setDataBatch(lsp12DataKeys, lsp12Values);