Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwAad7Bzh7P6/TfbTfBbD+JKYSTmXf5ta31i6z9JWDsG8Up/gk4XbwYHqNy/… (844 chars)"
  }
}