Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHMFnoW6heNs+PoRoZAeKXZY1/QGV92/UIXS/ICOgxwJ2uoSSf0e5H7bJu/… (844 chars)"
  }
}