curl --request GET \
  --url https://api.privy.io/v1/aggregations/{aggregation_id} \
  --header 'Authorization: Basic <encoded-value>' \
  --header 'privy-app-id: <privy-app-id>'

{
  "name": "<string>",
  "method": "eth_signTransaction",
  "metric": {
    "field": "<string>",
    "field_source": "<string>",
    "function": "sum",
    "abi": [
      {
        "type": "function",
        "name": "<string>",
        "inputs": [
          {
            "type": "<string>",
            "name": "<string>",
            "components": [
              {}
            ],
            "indexed": true,
            "internalType": "<string>"
          }
        ],
        "outputs": [
          {
            "type": "<string>",
            "name": "<string>",
            "components": [
              {}
            ],
            "indexed": true,
            "internalType": "<string>"
          }
        ],
        "stateMutability": "pure",
        "anonymous": true
      }
    ]
  },
  "window": {
    "type": "rolling",
    "seconds": 131400
  },
  "id": "<string>",
  "created_at": 123,
  "owner_id": "<string>",
  "conditions": [],
  "group_by": []
}