Task: Create a new member on Mailchimp

n8n workflow:
{"id":"3","name":"Mailchimp","nodes":[{"name":"On clicking 'execute'","type":"n8n-nodes-base.manualTrigger","position":[480,310],"parameters":{},"typeVersion":1},{"name":"Mailchimp","type":"n8n-nodes-base.mailchimp","position":[780,310],"parameters":{"list":"97542c5cf8","email":"xxxx@email.com","status":"subscribed","options":{},"mergeFieldsUi":{"mergeFieldsValues":[{"name":"FNAME","value":"Joe"}]}},"credentials":{"mailchimpApi":"mailchimpAPI"},"typeVersion":1}],"active":false,"settings":{},"connections":{"On clicking 'execute'":{"main":[[{"node":"Mailchimp","type":"main","index":0}]]}}}