Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwHhB7OzQz25Mziqq9qB41Ks9tF1eXmBGJidgKE4ux/iqw2eEEz3D0GXY5Yy… (844 chars)"
  }
}