Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwH7v7OlYoVy1IfVL4x5mzWwGVhQd6RGRs6j+BwDZFgAABZX/YpNiLd8Q3r1… (844 chars)"
  }
}