curl --request PATCH \
  --url https://api.example.com/v1/cases/{case_id}/institution-contacts/{contact_id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "institution_name": "<string>",
  "department_name": "<string>",
  "financial_account_id": "<string>",
  "is_default_contact": true,
  "account_types": [],
  "debt_subtypes": [],
  "contact_methods": {
    "phone": "<string>",
    "phone_hours": "<string>",
    "phone_extension": "<string>",
    "fax": "<string>",
    "email": "jsmith@example.com",
    "mailing_address": {
      "address1": "123 Main Street",
      "address2": null,
      "city": "Salt Lake City",
      "state": "UT",
      "zip": "84101"
    },
    "website": "<string>"
  },
  "contact_person": "<string>",
  "contact_title": "<string>",
  "reference_number": "<string>",
  "notes": "<string>"
}
'

{
  "data": {
    "id": "01K8IC04DJ3T10HRYE78AN7DDD",
    "financial_account_id": "<string>",
    "institution_name": "Chase Bank",
    "department_name": "Estate Services Department",
    "is_default_contact": false,
    "account_types": [
      "bank"
    ],
    "debt_subtypes": [],
    "contact_methods": {
      "phone": "+11112223333",
      "phone_hours": "Mon-Fri 8am-6pm EST",
      "phone_extension": "<string>",
      "fax": "+11112223333",
      "email": "estates@chase.com",
      "mailing_address": {
        "address1": "123 Main Street",
        "address2": null,
        "city": "Salt Lake City",
        "state": "UT",
        "zip": "84101"
      },
      "website": "https://www.chase.com/personal/estates"
    },
    "contact_person": "John Johnson",
    "contact_title": "Estate Services Specialist",
    "reference_number": "EST-2025-00456",
    "notes": "Ask for estate services team, reference case number.",
    "last_contacted": "2023-11-07T05:31:56Z",
    "created_at": "2023-11-07T05:31:56Z",
    "updated_at": "2023-11-07T05:31:56Z"
  }
}