Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGiRJUHJG0h/c1zTdXU+SrHthlpn0TLbKyMyL2TPFEZ7jkW0tUAUnwfZ7YQ… (844 chars)"
  }
}