Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwF4HJwv4Lnef8g7RL6wbYj0gbb/Gu1vDkdsbC1mV0OOYAm5cyGC5qtyLc4H… (844 chars)"
  }
}