Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFvJVvZ/NA1+bbMuS8VaYhy/Oz8V8Rnw/9E8c2CsGt0Jg5aOBQnRe+7qXi0… (844 chars)"
  }
}