Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwBVZ+XW/+pBA2ynEt3cxN2Ffk19Dh6y5E+ZezN8hH71GFsKQa1rP+AMb1ZZ… (844 chars)"
  }
}