Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwFO6kXz8pu7p2lYMFWFZLrS5r3hwE0SKFwWOPn8lFCwi1/plDr8OlzTlo4x… (844 chars)"
  }
}