Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwE+qRhAD4SM5L4tOlY7l/Pky8NIQD9dGffXtZbNua4BckfYBYkf7fyG5JZm… (844 chars)"
  }
}