Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwBfyJb+ldZ8EWEQLFZiij/EaKRMBmLcY+iUia5QS5FRH1cPFjwYkpOFzBaZ… (844 chars)"
  }
}