Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQCNhK/TH45HjCMIGmP2SrdLu7hEL+ijy7G875i6O+rjRwhvMip2p/5H6Mgm… (1,748 chars)"
  }
}