Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQE/ybPWzVZ2Of+nRTwa8LwZK9QTdYBmeNAQ5w487rIpTzjgbTA9YrFs+4U/… (1,748 chars)"
  }
}