How to I add contacts from Google Sheet to Mailchimp

Trigger, date & text format is already made to fit mailchimp on googlesheet.
I’m not sure what’s the “Subscriber hash -
The MD5 hash of the lowercase version of the list member’s email address.” is so I just put the column that has contact’s email address which is lower case and tried to deploy it, but looks like there’s an error.

“type”: “”,
“title”: “Resource Not Found”,
“status”: 404,
“detail”: “The requested resource could not be found.”,
“instance”: “83494bb3-df81-1d08-62a6-2cb22092e958”

On the mailchimp list ID i copied the ID from mailchimp URL and insert it as text do I need to add { } when adding any input on pipedream?