Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQDYpMYReUnxVfFLc4r8o4xpvQeIAixUjEMWc7/80qbZfSrrwGhCfy2U9rS+… (1,748 chars)"
  }
}