Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwA8tRWJzx5+FyRa9VhJI2xF6nhCO+Syi/vyAKtomq4C7V3jzADIIF7YpjlF… (844 chars)"
  }
}