Patch metadata of a user

Updates a users metadata by deep merging the metadata patch from the request with existing metadata.

Set the entire request to null to clear all metadata: Set any of public_metadata, private_metadata, unsafe_metadata to null to clear metadata for that category.

An empty object ({}) for the top level request object or an empty object for public_metadata, private_metadata or the unsafe_metadata property represent a noop patch.

Unknown top level keys besides public_metadata, private_metadata or unsafe_metadata are ignored.

All other top level request values (e.g. an empty string, a non-empty string, an array) result in a bad request.