When a subscription starts, we'd like to receive a webhook call so that we can handle some custom logic on our side to "activate" the plan.

For now, Lago only have a subscription.terminated event. A subscription.started event would also make a lot of sense.

We'd need details about the customer (external customer id...), the plan (plan code, plan amount, plan currency...) and the subscription (name, dates, subscription_external_id...).

With that we'll be able to trigger some automation to other systems very easily.