Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGpJkAA6vZAuXQKO+m6rvfX+NFpMMPvxVQuz/zQr5T1/G6jfPRjjD1ZK0JN… (844 chars)"
  }
}