Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwDhcpYGA2mKEqTLHXUR5F+5ASki8Gu7TcyTfVigYfiE8k5VXI7P1YM7mKd0… (844 chars)"
  }
}