curl --request PUT \
  --url https://api.mixpeek.com/v1/notifications/preferences/reminders \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "enabled": true,
  "onboarding_nudges": true,
  "engagement_reminders": true,
  "feature_tips": true,
  "quiet_hours_start": 123,
  "quiet_hours_end": 123
}
'

{
  "reminders": {
    "enabled": true,
    "onboarding_nudges": true,
    "engagement_reminders": true,
    "feature_tips": true,
    "quiet_hours_start": 123,
    "quiet_hours_end": 123
  }
}