Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwH2GF67A093f9YdNVEuVWrSo/XMGIh3kKYxew/3ZOBXzH8GhvDwEn8zayf3… (844 chars)"
  }
}