Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwBxqoelSWo7Wce5F0oojfaL8oouKmpOa31FnMPXYTQVWAZSd5+R5z9qXEsW… (844 chars)"
  }
}