curl --request PUT \
  --url https://api.ppio.com/gpus/v2/instances/{instance_id}/auto-renew \
  --header 'Authorization: <authorization>' \
  --header 'Content-Type: <content-type>' \
  --data '
{
  "auto_renew": {
    "enabled": true,
    "months": 1
  }
}
'

{}