Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGpO2NOVMAZbJ30n5aYH2iKc+MEUNDnE73wGYg2LVYmQUZa8oIP4W8kZ+Bx… (844 chars)"
  }
}