Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQEH4P6L/MycF/9onsnlypX9YCPXk/vM624qV4L9dDbK9FSRZF3+vKq1DxFv… (1,748 chars)"
  }
}