Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwDtMNSNxDUa6KBJzOUw4qFKkkMLtaNBC/2Xg1Jj+B8OCELYM3aG3r9L6MA3… (844 chars)"
  }
}