{
  "Parser" => {
    "Message" => "testmsgs/bluedot-simple.msg",
    "ExtractNested" => 1,
    "OutputToCore" => "0",
    "Name" => "anonymous"
  },
  "Msg" => {
    "Filename" => "bluedot.jpg",
    "Size"     => 4272,
    "Disposition" => "inline",
    "Type"     => "image/jpeg",
    "Encoding" => "base64"
  },
}