Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGd47oB2xCmIauUNL7nkbr+kxDdAylqjB/ZZAH/N+p58EUj0+CsBEWJpEI4… (844 chars)"
  }
}