Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQCS7IrYEPtHzt/LCX2TRNLZXAwFwiPbQYjpDvJjR8JRggUf6vjmSP8e9uZ8… (1,748 chars)"
  }
}