curl --request POST \
  --url {protocol}://{host}/wp-json/cocart/preview/order-received/{order_id}/pay \
  --header 'Authorization: Basic <encoded-value>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "order_key": "<string>",
  "payment_method": "<string>",
  "payment_data": [
    {
      "key": "wc-stripe-payment-token",
      "value": "<string>"
    }
  ]
}
'

{
  "success": true,
  "order_id": 789,
  "order_status": "processing",
  "redirect_url": "https://example.com/checkout/order-received/789/?key=wc_order_abc123xyz"
}