Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAGDQA37VJbDX4A/Mxp19XCcQX8Kt7fFNTWV37COnw7Bc1NOSzheNi2UCEj7Mdi… (1,748 chars)"
  }
}