Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwHtiCfa0RvwbIOz7Dy3P9u4x+QwuaHTbr+AIMTuv9Aw4B4Jy74uQdnX5Rcj… (844 chars)"
  }
}