curl --request GET \
  --url https://sandbox.withclasp.com/beneficiaries/{public_id}

{
  "id": "<string>",
  "full_name": "<string>",
  "member": "<string>",
  "tin_last_four": "<string>",
  "address": {
    "line1": "<string>",
    "city": "<string>",
    "zip_code": "<string>",
    "line2": "<string>"
  },
  "phone_number": "<string>",
  "dob": "2023-12-25"
}