Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQDEsbiWUB3+MbJzt0LlEfjmElVH+HC6XP0yTvs6mXILnB7CSZw3LT2Qngp+… (1,748 chars)"
  }
}