Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwA2BatUYNz63+HvoKuiur3QJp/JX8Vk2gX2GCfrRyVQQ2qeD9rcp8nW/JJB… (844 chars)"
  }
}