Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwHMjfubDqXpk1dI9DLMm5x/ZfhB4i88xNMuJbgZq+Nm3irRDUu40qxvhcVq… (844 chars)"
  }
}