curl --request PATCH \
  --url https://api.openmic.ai/h/v2/contact-lists/{contact_list_id}/contacts/{contact_id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "phone_number": "+14155550300",
  "contact_info": {
    "tier": "vip"
  }
}
'

{
  "id": 123,
  "name": "<string>",
  "phone_number": "<string>",
  "phone_number_2": "<string>",
  "phone_number_3": "<string>",
  "contact_info": {},
  "created_at": "2023-11-07T05:31:56Z",
  "updated_at": "2023-11-07T05:31:56Z"
}