Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwApnc2Ly5OTc9d8rSi5xADqfpcP9v2TGNjK/QVr8YpQ6Hso2g0UgqmXf5Z+… (844 chars)"
  }
}