Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFKzP3FsOCBpHj/6X/g4utXiJAFZB4ItULWo5ngJIWxUzYQjUD3JcQy0XPv… (844 chars)"
  }
}