Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwFGhtuH/pb0x7LGlVPuGXDEsKqg6VPwVDQKO4DYFGWx+Fh+z7qtb2F4BfXj… (844 chars)"
  }
}