# Verify Payload signature

```javascript
xumm.payload?.get('some-payload-uuid').then(payloadResult => { /**/ })
```

If you want the actual blob and signature for the user signed in with the Xumm OAuth2 flow:

1. Get the JWT contents
2. Get the payload from the JWT (that's the Sign In payload)
3. Get that payload with the SDK
4. Check the payload data, the `response.hex` property holds the signed TX Blob

```javascript
xumm.on("success", async () => {
  const { payload_uuidv4 } = await xumm.environment.jwt
  const payloadResult = await xumm.payload?.get(payload_uuidv4)
  console.log(payloadResult)
})
```

Now you can verify the signature using the `xrpl-verify-signature` package, or using any native method capable of verifying XRP Ledger signatures:

{% embed url="<https://www.npmjs.com/package/verify-xrpl-signature>" %}