Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwG+SNtqV2SfIScrn1UH8e4S9TqV3iGDPEEgHjmROb0/ShWCMnWpg4pzJhZA… (844 chars)"
  }
}