Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwF27k9sJP55Uf+L6lY2F0LnUJkachfzXUIF19aMpB4S9yKO8ZLFuCwST7jJ… (844 chars)"
  }
}