Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAGDQGQ51ZbzjmnfeNTK3kZBs4zzVg0MNcqcVncv5ze3cXXPjgKUD3D7N/5BBR/… (1,748 chars)"
  }
}