Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwFUZtRPbQ+OiMYNKs/tf4pBDMKcfYk5zdeHpQq+Kz46ZQfrqk91wXl+Qdqc… (844 chars)"
  }
}