curl --location --request POST 'https://api.keenpartner.com/api:-rEW9niB/purchase?lead_id&product_id&purchase_amount&date&description' \
--header 'x-api-key: {your_api_key}'{
"id": 1,
"created_at": 1764251193514,
"leads_id": 1,
"products_id": 1,
"purchase_amount": 1.00,
"date": 1764251193514,
"description": "Description of the purchase"
}