Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGfUc3amM6Bc+KcLJvMGuWzE2Iam8fRf7KMzXDSOx/YJjHkSrF1Fj87Beb/… (844 chars)"
  }
}