put https://sandbox1-api.unit21.com/v1//entities//update
Updates an entity's information using the entity_id from your platform.
Updating an entity has no required fields. You MAY send any subset of the fields that the entities/create endpoint accepts.
Placeholder entities cannot be updated.
This endpoint requires the entity_id which is a unique ID created by your organization to identify the entity. The org_name is your Unit21 appointed organization name such as google or acme.
Note that you can also update an entity using an upsert through /entities/create.
Follow the links for more information: