Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwFCUuodGX2krmP8xCMjW9ust76yEBQbWYKRBpzLVdxOcR9Fv94vD7EM0yl+… (844 chars)"
  }
}