Update a contact

curl --request PATCH \
  --url http://localhost:8080/contacts/{contact_id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "contact": {
    "email": "jsmith@example.com",
    "phone": "<string>",
    "name": "<string>",
    "custom_data": {}
  }
}'

This response has no body data.