Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwBs6oNjV7YQ1hUDsjcGhOCtFTZpFtRyiF/LjvEl+5fAOlZcfBF9hTI03qHV… (844 chars)"
  }
}