curl --request GET \
  --url https://dev-prediction-markets-api.dflow.net/api/v1/onchain-trades \
  --header 'x-api-key: <api-key>'

{
  "trades": [
    {
      "createdAt": 1,
      "eventType": "<string>",
      "feeAmount": 123,
      "feeMint": "<string>",
      "fillRecipient": "<string>",
      "id": 123,
      "inputAmount": 123,
      "inputMint": "<string>",
      "orderAccount": "<string>",
      "outputAmount": 123,
      "outputMint": "<string>",
      "refundRecipient": "<string>",
      "transactionSignature": "<string>",
      "wallet": "<string>",
      "contracts": 123,
      "marketTicker": "<string>",
      "side": "<string>",
      "usdPricePerContract": 123
    }
  ],
  "cursor": "<string>"
}