Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwB0Lnp+QOZbPx8w+7/3ltVC3QvbWBTZmSGjNESWmtFaCnzaIJozBJksLIoJ… (844 chars)"
  }
}