post {protocol}://{server}/api/notification/v1beta/accounts//subscriptions/:renew
Renew an existing subscription by subscriptionId before it has expired. A subscription can be kept ACTIVE indefinitely or this can be leveraged to change an INACTIVE subscription back to ACTIVE. The subscription expiration is tied to the access token used to create it. You must renew the subscription via this API before the expiresIn time has passed, otherwise the subscription will be set to INACTIVE.
For a 'WEBHOOK' subscription, the authToken can also be updated at this time in case the token you verify has expired.