curl -X PATCH "https://api.services.payward.com/v1/webhooks/whk_01J0M7C0Z9F8YX3GQH8E" \
  -H "API-Key: $PWS_API_KEY" \
  -H "API-Nonce: $PWS_API_NONCE" \
  -H "API-Sign: $PWS_API_SIGN" \
  -H "Idempotency-Key: 550e8400-e29b-41d4-a716-446655440000" \
  -H "Content-Type: application/json" \
  -d '{
    "enabled": true,
    "events": [
      "quote.executed"
    ]
  }'

{
  "data": {
    "webhook": {
      "id": "whk_01J0M7C0Z9F8YX3GQH8E",
      "url": "https://example.com/webhooks/payward",
      "enabled": true,
      "subscribed_events": [
        "transfer.completed",
        "transfer.failed",
        "swap.completed"
      ],
      "available_events": [
        "transfer.completed",
        "transfer.failed",
        "swap.completed",
        "swap.failed",
        "deposit.completed",
        "withdrawal.completed",
        "withdrawal.failed"
      ],
      "created_at": "2025-12-01T10:00:00Z",
      "updated_at": "2026-04-22T08:14:32Z"
    }
  }
}