Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAGDQDvDI2M8+YyucvD8p3RG3c1xVvMRxm6pJrNdgQ5V2gPqH6X3NOaL4JPOMHx… (1,748 chars)"
  }
}