Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwHNQD/A7R6nGkhgfgyjbQO8o7YUKMae+fqt/+DPJgd/T2SvHd2rVf3iD3Xw… (844 chars)"
  }
}