Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQDcUlOw1IRkZ0JEuoM2TjdHu75nw+HL6yY+1H63ynqwJAuK/Wofe+eKqEZJ… (1,748 chars)"
  }
}