Webhook when user starts stream with empty data on body

API
5

I’m receiving this message in my application when I start a stream

{
    "type": "get",
    "data": {
        "hub_mode": "denied",
        "hub_reason": "exceeded maximum number of allowed subscriptions",
        "hub_topic": "https:\/\/api.twitch.tv\/helix\/streams?user_id=167238651"
    },
    "headers": {
        "Content-Type": "",
        "Host": "my.domain.com",
        "User-Agent": "Go-http-client\/1.1",
        "Connection": "close",
        "Accept-Encoding": "gzip"
    }
}

This means that I’ve exceeded the maximum number of subscriptions on my account and I need to request to increase that limit?

I think I need to, but I’m asking this just to make sure.
One thing I’ve observed is that the request come using the verb GET and not POST.