Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHCkbf9IUbH4a0RCMOg4dU3oWgWqfpch3D0sVaiJMTRP2eofnNYhEXg1hA/… (844 chars)"
  }
}