curl --request POST \
  --url https://api.vocode.dev/v1/webhooks/update \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "subscriptions": [
    "event_message"
  ],
  "url": "<string>",
  "method": "GET"
}'

{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "user_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "subscriptions": [
    "event_message"
  ],
  "url": "<string>",
  "method": "GET"
}