Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQBeD9zT0zV0BncTdBx1DszrJ/z1x2gYNedM9vETtAMV6SId1H9g/1j6x8CV… (1,748 chars)"
  }
}