CDDL: Specify internal COSE payload type/structure

[Pique7]

Is it possible in CDDL to specify which internal structure a COSE payload data should have?
I want to encrypt CBOR data. I have defined a CDDL fragment of the data that should be encrypted. e.g.:

my-encrypted-cbor-data = {
  email_address: string,
  password: string
}

And I have a CDDL fragment which contains a COSE_Encrypt0 object:

my-container = {
  id: uint,
  confidential: COSE_Encrypt0
}

Does CDDL provide a construct to define this relationship, that the payload of my-container.confidential should be a CBOR structure compliant with my-encrypted-cbor-data?