Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwDNvsu0pr7BfG2iC/r1bcucbxYz1yEGw1y43sOWXfpC0Wq/idDXVrWd4dPp… (844 chars)"
  }
}