Webhooks - How to understand triggering account?

I might be missing something, I have went through the docs, I am not sure how I understand which of the Hubspot accounts that installed my app is the account that triggered the webhook?

I looked under “Webhooks payloads” in these docs

Thanks

@zigi , if you scroll down to the sample webhook payload, you will see portalId in the returned json objects

example:

{
 "objectId": 1246965,
 "propertyName": "lifecyclestage",
 "propertyValue": "subscriber",
 "changeSource": "ACADEMY",
 "eventId": 3816279340,
 "subscriptionId": 25,
 "portalId": 33,
 "appId": 1160452,
 "occurredAt": 1462216307945,
 "subscriptionType":"contact.propertyChange",
 "attemptNumber": 0
 }