curl --request PATCH \
  --url https://api.pickupbell.com/locations/{locationId}/call-forwarding \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "existing_business_line": "<string>"
}
'

{
  "data": {
    "location_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "existing_business_line": "<string>",
    "updated_at": "2023-11-07T05:31:56Z"
  }
}