Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwEcMYH7uyfSK9H5/aMbmyypEcA+pZk8X3Uhw2+GKFJfC3BqISJVY7vcSzhJ… (844 chars)"
  }
}