Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHuxK0Vt7XB+Jc/a4n6BPd0Jt2i7j6L06/3VVnBGxsHeXJASh4fiqijlc64… (844 chars)"
  }
}