Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHwB6PvMujbyYbWDN2Wm4MqS/9VAY3ImDXwJkd9/pXVZj+Uu4gnCPaHWd3T… (844 chars)"
  }
}