curl --request DELETE \
  --url https://api.jup.ag/prediction/v1/positions \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "ownerPubkey": "<string>"
}
'

{
  "data": [
    {
      "transaction": "<string>",
      "txMeta": {
        "blockhash": "<string>",
        "lastValidBlockHeight": 1
      },
      "externalOrderId": "<string>",
      "order": {
        "orderPubkey": "<string>",
        "orderAtaPubkey": "<string>",
        "userPubkey": "<string>",
        "marketId": "<string>",
        "marketIdHash": "<string>",
        "positionPubkey": "<string>",
        "isBuy": true,
        "isYes": true,
        "contracts": "<string>",
        "newContracts": "<string>",
        "maxBuyPriceUsd": "<string>",
        "minSellPriceUsd": "<string>",
        "externalOrderId": "<string>",
        "orderCostUsd": "<string>",
        "newAvgPriceUsd": "<string>",
        "newSizeUsd": "<string>",
        "newPayoutUsd": "<string>",
        "estimatedProtocolFeeUsd": "<string>",
        "estimatedVenueFeeUsd": "<string>",
        "estimatedTotalFeeUsd": "<string>"
      }
    }
  ]
}