Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGjlsPM+2bHuSv9cy0Vrnqok7mndsNJq9LYn6hSNFcj+0WFa/BLwwzYxnO/… (844 chars)"
  }
}