Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwH/7QrKnhbP3mcOyjHpPRC7hCK8Yu7/D8xC/OT3zHPvEg2fw8tvp2Jx9mLm… (844 chars)"
  }
}