Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwG25/BxQdDo5uGE/EjXrEh+VMKB9gqkUrEXVwgG2xGSjnU7IjDBM4bLymr2… (844 chars)"
  }
}