Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHq8YufRoABdNdT423OzJwpbI/e6vqNP4RwL2zfvg2MliTI2kEH+PdmgknA… (844 chars)"
  }
}