Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwE2nu7kbBHuVSEwh9Xvud841Hu5Qqd/Ri/Sfs1UXz3VNRWvjWw1Tcvjg+kf… (844 chars)"
  }
}