Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAGDQBzQpju8Ed4xfqQhs1l5YIFXpZwl+DL5hCe9NUvyZEnG3Of7FlC1ygXOzuE… (1,748 chars)"
  }
}