curl --request PUT \
  --url https://api.example.com/v1/cases/{case_id}/executor \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "first_name": "<string>",
  "last_name": "<string>",
  "email": "jsmith@example.com",
  "middle_name": "<string>",
  "phone": "<string>",
  "date_of_birth": "2023-12-25",
  "address": {
    "address1": "123 Main Street",
    "address2": null,
    "city": "Salt Lake City",
    "state": "UT",
    "zip": "84101"
  }
}
'

{
  "data": {
    "full_name": "John Jonas Johnson",
    "first_name": "John",
    "middle_name": "Jonas",
    "last_name": "Johnson",
    "phone": "+11112223333",
    "date_of_birth": "1990-06-20",
    "address": {
      "address1": "123 Main Street",
      "address2": null,
      "city": "Salt Lake City",
      "state": "UT",
      "zip": "84101"
    },
    "email": "john.doe@example.com",
    "relationship_to_deceased": "grandchild_step_or_in_law",
    "verification_level": "level_2"
  }
}