Registering a UniversalX Account

import { UniversalAccount, createUnsignedMessage } from "@particle-network/universal-account-sdk";
import { randomUUID } from "crypto";

const ua = new UniversalAccount({
  projectId: process.env.NEXT_PUBLIC_PROJECT_ID!,
  projectClientKey: process.env.NEXT_PUBLIC_CLIENT_KEY!,
  projectAppUuid: process.env.NEXT_PUBLIC_APP_ID!,
  ownerAddress: 'USER_ADDRESS',
});

// Fetch smart account info to get the UA address
const smartAccountOptions = await ua.getSmartAccountOptions();

// Optional invite code
const inviteCode = "000000";

// Prepare registration payload
const deviceId = randomUUID();
const timestamp = Date.now();

const unsignedMessage = createUnsignedMessage(
  smartAccountOptions.smartAccountAddress!,
  deviceId,
  timestamp
);

// Sign message using EOA (can be a backend wallet)
const signature = provider.signMessage(unsignedMessage);

// Register the UniversalX account
const result = await ua.register(inviteCode, deviceId, timestamp, signature);

if (!!result.token) {
  console.log("Registration successful.");
} else {
  console.error("Registration failed:", result);
}