Request webhook management link

curl --request POST \
  --url https://api.enterprise.sandbox.uphold.com/core/webhooks/management-link \
  --header 'Authorization: Bearer <token>'

{
  "managementLink": {
    "url": "https://app.svix.com/login#key=eyJhcHBJZCI...",
    "expiresAt": "2025-03-01T17:40:28.707594166Z"
  }
}