Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwDioqv0Yb/VbcmfOSHu9/SJMsUjGJynYt/OjXghYMSJXHH8tcg+b7bhquGF… (844 chars)"
  }
}