Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwEmr9ZGGZghgvyJqwMAn4l/Z8Bv4x/a1OxuUzioS1pI0xMOo9GFcoFBzU0M… (844 chars)"
  }
}