# processingAccount.signature.signed

processingAccount.signature.signed: Event type: processingAccount.signature.signed\\

**Event type:** processingAccount.signature.signed  
**Version:** 1.0.0  
**Resource:** Boarding

We trigger this event when an owner or an authorized signatory signs the Merchant Processing Agreement (MPA) for a processing account.

<a id="notification-payload"></a>
### Notification payload

| Attribute | Description |
| --- | --- |
| **processingAccountId** | Unique identifier that we assigned to the processing account. |
| **signed** | Indicates that an owner or an authorized signatory has signed the MPA. The value is `true`. |

<a id="example"></a>
### Example

```json
{
  "specversion": "1.0",
  "type": "processingAccount.signature.signed",
  "version": "1.0.0",
  "source": "payroc",
  "id": "123e4567-e89b-12d3-a456-426614174000",
  "time": "2026-05-21T11:30:00.000Z",
  "datacontenttype": "application/json",
  "data": {
    "processingAccountId": "38765",
    "signed": "true"
  }
}
```