Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQCTXzEKTG/fBl5w7Mh8Jfh95B4DAoOLOh5PtdrGH4Qvy2mCnijEKl1lsz4/… (1,748 chars)"
  }
}