curl --location 'https://stageapi.partake.ng/api/v2/merchants/kyc/nin' \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '{
"nin": "12345678901"
}'{
"success": true,
"data": {
"id": "kyc_01",
"merchantId": "merch_01",
"ninStatus": "verified",
"status": "verified"
},
"message": "NIN added to KYC record."
}