Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwA/8p3S+x8IiUdEg5ayjT+wlhHMx1fwnyDHMLowuCqH0XBjgMqtXY3K82Zo… (844 chars)"
  }
}