curl --request POST \
  --url https://api.example.com/v1/webhook/price_signal/set \
  --header 'Content-Type: application/json' \
  --header 'x-ws-api-key: <api-key>' \
  --data '
{
  "webhookUrl": "https://example.com/wattshift/webhook",
  "securityKey": "your_webhook_security_key",
  "openAdr": false
}
'

{
  "id": "ws_webhook_123456789",
  "createdAt": "2025-01-02T12:00:00.000Z",
  "updatedAt": "2025-01-02T12:00:00.000Z",
  "apiOwnerOrgId": "org_123456789",
  "webhookUrl": "https://example.com/wattshift/webhook",
  "securityKey": "your_webhook_security_key",
  "eventType": "PRICE_SIGNAL",
  "lastSentAt": null,
  "openAdr": false
}