Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGsdPDA6MTsBSDXkeCF11nQRSZD5Qr7jSvSXzv0R8UB8QBkxc/j4V1/Xk1+… (844 chars)"
  }
}