curl --request POST \
  --url https://api.balansas.com/functions/v1/customer-api/webhooks \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "url": "<string>",
  "eventTypes": [],
  "description": "<string>"
}
'

{
  "data": {
    "id": "a1b2c3d4-e5f6-4a7b-8c9d-0e1f2a3b4c5d",
    "url": "https://example.com/webhooks/balansas",
    "description": "Production payment events",
    "event_types": [
      "payment.created",
      "payee.status_updated"
    ],
    "is_active": true,
    "signing_secret_prefix": "whsec_ab",
    "created_at": "2026-05-28T11:02:09.456Z",
    "updated_at": "2026-05-28T11:02:09.456Z",
    "signing_secret": "whsec_ab12cd34ef56gh78ij90kl12mn34op56"
  }
}