Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwHcaXE57z8UsRcB875Wm/znEyE/6+S0GoJUjqG8D0wkPiDl4E3NdH6tUkMh… (844 chars)"
  }
}