Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQCMMBQbxDKGRbJF3oTQCTgGbp5xRSVDY/BoE3dtl1ytYFArJsqy9mM7VHV/… (1,748 chars)"
  }
}