Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwIGhIzYFvB4TNp/KZ3n0fAjq3irzqYlwbZYkNZeNdxcGgxHMXF59tBB9yPG… (844 chars)"
  }
}