curl -X POST 'https://crypto-api.yativo.com/api/v1/yativo-card/customers/yativo_card_customer_8f9a..._1769031332068/verify-otp' \
  -H 'Authorization: Bearer YOUR_ACCESS_TOKEN' \
  -H 'Content-Type: application/json' \
  -d '{"otp": "847291"}'

{
  "success": true,
  "message": "Email verified successfully",
  "data": {
    "yativo_card_id": "yativo_card_customer_8f9a..._1769031332068",
    "flow_status": "otp_verified",
    "next_step": "kyc_link"
  }
}

{
  "success": false,
  "error_code": "OTP_VERIFICATION_FAILED",
  "message": "Invalid OTP"
}

{
  "success": false,
  "error_code": "OTP_EXPIRED",
  "message": "OTP has expired. Request a new one."
}