Unsubscribe contact from list (by ID)
documentedUnsubscribe a contact from a specific list using their internal list contact ID (request body should include {"id":"..."}).
POST /lists/{list_id}/unsubscribe.jsonListsno implementation yet0 runsInput
list_id*
Campayn List ID
12345
contact_id*
Contact ID
67890
Calls campayn as you (your API key is your account); keychains.dev holds the credentials.