Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwE0y10hxcX2DkKK/mFUHTG7Ib7/3qvTrCAdmE5685jvAyu2ug6bOOlc/K4X… (844 chars)"
  }
}