Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwE6EAiAAgGc5qfLnoY7NP+2A66Dz/0f4kWacBcJX5sUmEybtEvYLNdaR3vP… (844 chars)"
  }
}