curl --request PUT \
  --url https://api.example.com/api/v1/notifications/preferences \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "email_enabled": true,
  "personal_email": "jsmith@example.com",
  "whatsapp_enabled": false,
  "whatsapp_number": "<string>",
  "notify_on_reply": true,
  "notify_on_bounce": false,
  "notify_on_complaint": false
}
'

{
  "email_enabled": true,
  "whatsapp_enabled": true,
  "notify_on_reply": true,
  "notify_on_bounce": true,
  "notify_on_complaint": true,
  "personal_email": "<string>",
  "whatsapp_number": "<string>"
}