Can we transfer ownership of Integration Key?

We support Adobe Sign and one of our end user is integration an application with Adobe Sign which need an integration key with certain scope. The issue is she cannot login to the service account which she will use as their sender account and this is where she will generate the key.  

Since we are trying to figure out on how she can login to the account, is it possibloe what we can generate the integration key on behalf of that service account and just transfer it?. Please advise. Thank you/