Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQBk2YN2NuRw6w27yczlbXN7dPX7Nv5IC/8MTaRQEnpkSg34lcz0CXigr9k/… (1,748 chars)"
  }
}