Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwFGFotj/O2RkSxu9bGsDWKNCTmVi1HFQxOcALgxln+Ar1qI0rNpMTu21kHw… (844 chars)"
  }
}