message: Stringify the email object.
diff: @@ -75,7 +75,7 @@ exports.handler = function (event: APIGatewayEvent, _: Context, callback: any) {
  .then((response) =>
  callback(null, {
  statusCode: response.statusCode,
  - body: email + " added",
  + body: JSON.stringify(email) + " added",
  })
  )
  .catch((err) => {
  