Get User Sending Email

curl --request GET \
  --url https://api.supernotes.app/v1/keys/email \
  --header 'Api-Key: <api-key>'

{
  "data": "<string>",
  "enabled": true,
  "expires_when": "2023-11-07T05:31:56Z",
  "last_used_when": "2023-11-07T05:31:56Z"
}