Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwG5hXWLGhynTJAu+5OdBGsZJJysL5Lgj+BKcl2/NeGZKCsb64LZQJaH7GUh… (844 chars)"
  }
}