Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGzyVTFpfG/VsM55Vt1dj2r5oNOonwUCGMfOY/g1Sw1KTVYLcWbm82Vf0mX… (844 chars)"
  }
}