I add the answer in case it is useful to someone else
I solved this requirement using the aem API for workflows. Basically, I added in the asset metadata a text field where the user can set the task id, I also added a dropdown with the list of task statuses from the workfront. So, added a new change event listener and when the user selects a new status, a new call to aem is executed and a new workflow instance is created which has the java logic to call the job front and change the status of the task.
Browser->AEM->Workfront