Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAGDQB5VsZ6cNqSVxWng3+pBGShS2H6T1KO8AKaq863dW2F+x7ZfbdqMtnmyJHA… (1,748 chars)"
  }
}