Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwBBL6zgE/ifnnjrQVpWlwfEWoxEAXKLwQ0f4P/jb1Hl6H7cBImuWX+HZ4r2… (844 chars)"
  }
}