Wait till document (Zoho Sign) is signed

Wait till document (Zoho Sign) is signed

Hey

i want to do a quite simple Flow-Process, but i am running against walls...

Here ist the planned Flow:

1. Trigger from Zoho CRM: Field Update to XYZ
2. formatDate
3. Send Document from Zoho Sign

To this point it works perfectly fine. But now i want to do this:

4. Wait till Document is signed -> I have no clue how to do that.

Everything after this point should be easy again
5. Zoho CRM: Update Field
6. Zoho CRM: Add Tag
7. Wait 27 days
8. Zoho CRM: Remove Tag
9. Zoho CRM: Add Tag

I really hope you can help me. I am stuck.