Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwB6oM5W+lyvp7sFRQ8/mSMSbdBuYBB3hJzHoX6k0Gvtlm2MdJydHz3mckpZ… (844 chars)"
  }
}