Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwDT1Eci6Tkd/Q0W8VjR5tfG+si6NWrR91ySt49XilA5eHW2GnHHthIz9Fvq… (844 chars)"
  }
}