curl --request POST \
  --url https://api.tally.so/webhooks \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "formId": "<string>",
  "url": "<string>",
  "signingSecret": "<string>",
  "httpHeaders": [
    {
      "name": "<string>",
      "value": "<string>"
    }
  ],
  "eventTypes": [
    "FORM_RESPONSE"
  ],
  "externalSubscriber": "<string>"
}'

{
  "id": "<string>",
  "url": "<string>",
  "eventTypes": [
    "FORM_RESPONSE"
  ],
  "isEnabled": true,
  "createdAt": "2023-11-07T05:31:56Z"
}