Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQHu284Tz7TTtHVXxkk75fPFRMWY2b6IozHYpMAjnXi4TiSqCA/l7vA4i1vB… (1,748 chars)"
  }
}