Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwE3VIc33CNb/zhHH4XAZbk6yDKn9KYG3Tlxx9Hy3rdBr2jAFpBn7jD8xsKs… (844 chars)"
  }
}