Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGMZfsdwYz+x8pdAzp0dTakzOM2qBhVkPxu9EuNFZ8sPx6+1CauJoiLjVs+… (844 chars)"
  }
}