curl --request PATCH \
  --url http://localhost:8080/insurance_policies/{insurance_policy_id} \
  --header 'Content-Type: application/json' \
  --header 'admin-api-key: <api-key>' \
  --data '
{
  "end_date": "2027-01-15",
  "external_policy_id": "<string>",
  "start_date": "2026-01-15",
  "status": "pending"
}
'

{
  "benefit_id": "<string>",
  "benefit_name": "<string>",
  "created_at": "<string>",
  "daily_premium_amount": {
    "currency": "INR",
    "value": 123
  },
  "dependant_ids": [
    "<string>"
  ],
  "grace_period_days": 123,
  "id": "<string>",
  "last_modified_at": "<string>",
  "monthly_premium_amount": {
    "currency": "INR",
    "value": 123
  },
  "nominee_details": "<unknown>",
  "primary_user_id": "<string>",
  "status": "pending",
  "end_date": "2027-01-15",
  "external_policy_id": "<string>",
  "metadata": {
    "dependant_mrn_map": {}
  },
  "start_date": "2026-01-15"
}