Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHwKHZVzEuz3KlisRn/YZsHVCFL4Eb4DrW4HXx5aMWKgk4EjJI5GjRLR5T2… (844 chars)"
  }
}