curl --request PUT \
  --url https://your-instance.example.com/api/user/sms-templates/{templateId} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "<string>",
  "template": "<string>",
  "type": "<string>",
  "category": "<string>"
}
'

{}