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

{
  "transaction": "<string>",
  "txMeta": {
    "blockhash": "<string>",
    "lastValidBlockHeight": 1
  },
  "position": {
    "positionPubkey": "<string>",
    "marketPubkey": "<string>",
    "userPubkey": "<string>",
    "ownerPubkey": "<string>",
    "isYes": true,
    "contracts": "<string>",
    "payoutAmountUsd": "<string>"
  }
}