diff --git a/helpers/index.ts b/helpers/index.ts
index 3fe2b8f..6680c42 100644
--- a/helpers/index.ts
+++ b/helpers/index.ts
@@ -1,22 +1,38 @@
 import { getRandomValues } from "node:crypto";
+import type { Signer } from "@xmtp/node-sdk";
 import { fromString, toString } from "uint8arrays";
-import { toBytes } from "viem";
+import { createWalletClient, http, toBytes } from "viem";
 import { privateKeyToAccount } from "viem/accounts";
+import { sepolia } from "viem/chains";
 
-/**
- * Create a signer from a private key
- * @param privateKey - The private key of the account
- * @returns The signer
- */
-export const createSigner = (privateKey: `0x${string}`) => {
-  /* Convert the private key to an account */
-  const account = privateKeyToAccount(privateKey);
-  /* Return the signer */
+interface User {
+  key: string;
+  account: ReturnType<typeof privateKeyToAccount>;
+  wallet: ReturnType<typeof createWalletClient>;
+}
+
+export const createUser = (key: string): User => {
+  const account = privateKeyToAccount(key as `0x${string}`);
+  return {
+    key,
+    account,
+    wallet: createWalletClient({
+      account,
+      chain: sepolia,
+      transport: http(),
+    }),
+  };
+};
+
+export const createSigner = (key: string): Signer => {
+  const user = createUser(key);
   return {
-    getAddress: () => account.address,
+    walletType: "EOA",
+    getAddress: () => user.account.address,
     signMessage: async (message: string) => {
-      const signature = await account.signMessage({
+      const signature = await user.wallet.signMessage({
         message,
+        account: user.account,
       });
       return toBytes(signature);
     },
diff --git a/package.json b/package.json
index c963392..95d9ef0 100644
--- a/package.json
+++ b/package.json
@@ -8,6 +8,7 @@
     "integrations/*"
   ],
   "scripts": {
+    "build": "tsc",
     "clean": "rimraf node_modules && yarn clean:dbs",
     "clean:dbs": "rimraf *.db3* ||:",
     "examples:gated": "tsx --env-file=.env examples/gated-group/index.ts",
@@ -20,7 +21,7 @@
     "typecheck": "tsc"
   },
   "dependencies": {
-    "@xmtp/node-sdk": "0.0.42",
+    "@xmtp/node-sdk": "0.0.45",
     "alchemy-sdk": "^3.0.0",
     "openai": "latest",
     "tsx": "^4.19.2",
diff --git a/yarn.lock b/yarn.lock
index 6f159de..c1e12f0 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1281,6 +1281,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@xmtp/node-bindings@npm:^0.0.38":
+  version: 0.0.38
+  resolution: "@xmtp/node-bindings@npm:0.0.38"
+  checksum: 10/a9452a913cdda5cd050b91ed34358b8975524d1c5e6434db51b1d60f13a29069b531ee566811ab4ed339713ad0e041e83f24fc916684c968c322ba63f21319f3
+  languageName: node
+  linkType: hard
+
 "@xmtp/node-sdk@npm:0.0.42":
   version: 0.0.42
   resolution: "@xmtp/node-sdk@npm:0.0.42"
@@ -1294,6 +1301,19 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@xmtp/node-sdk@npm:0.0.45":
+  version: 0.0.45
+  resolution: "@xmtp/node-sdk@npm:0.0.45"
+  dependencies:
+    "@xmtp/content-type-group-updated": "npm:^2.0.0"
+    "@xmtp/content-type-primitives": "npm:^2.0.0"
+    "@xmtp/content-type-text": "npm:^2.0.0"
+    "@xmtp/node-bindings": "npm:^0.0.38"
+    "@xmtp/proto": "npm:^3.72.3"
+  checksum: 10/70eb659105a585e651f9c9a538b98014476212a1023308b88012317a5c64e58b4a2d920891c131e763d449823cb8d1e126a4041ff73a803b5593702f43c08e8c
+  languageName: node
+  linkType: hard
+
 "@xmtp/proto@npm:^3.72.0, @xmtp/proto@npm:^3.72.3":
   version: 3.73.0
   resolution: "@xmtp/proto@npm:3.73.0"
@@ -3831,7 +3851,7 @@ __metadata:
     "@ianvs/prettier-plugin-sort-imports": "npm:^4.4.1"
     "@types/eslint__js": "npm:^8.42.3"
     "@types/node": "npm:^22.13.0"
-    "@xmtp/node-sdk": "npm:0.0.42"
+    "@xmtp/node-sdk": "npm:0.0.45"
     alchemy-sdk: "npm:^3.0.0"
     eslint: "npm:^9.19.0"
     eslint-config-prettier: "npm:^10.0.1"