Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwE9+b3Zv+MNcdmTNAq70Oyc7wwh8Ec3O8nBTgHwZ3b+XCQ61XqRYT/m/han… (844 chars)"
  }
}