Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwFcRizvd5NTC/PZX++m5ZlHK2T5pu3pxTXw3VpL21xOGmGPE1TxNqeYHLJX… (844 chars)"
  }
}