/**
 * Lists::AddSubscriberNotes
 *
 *  Add notes to a subscriber.
 *
 *  email [email, required]: subscriber email
 *  list  [int, required]: subscriber list id
 *  note  [array of objects, required]
 *      noteid  [int, optional]: note id, if given, that note is updated
 *      content [string, required]: note content
 */
{
  "username": "Bob",
  "usertoken": "X",
  "requesttype": "Lists",
  "requestmethod": "AddSubscriberNotes",
  "details": {
    "email": "{*email_address*}", /* required */
    "list": "{*list_id*}", /* required */
    "note": [
      { /* required: at least one */
        "noteid": "{*note_id*}",
        "content": "{*note_content_text*}" /* required */
      },
      {
        "noteid": "{*note_id*}",
        "content": "{*note_content_text*}" /* required */
      }
    ]
  }
}