Federal authorities deepened their investigation into music mogul Sean ‘Diddy’ Combs by issuing a new grand jury subpoena related to a hotel in Florida. The 54-year-old rapper, along with his ex Daphne Joy, have been named in the subpoena, which requests the fancy Miami hotel to provide a range of documents and evidence. The subpoena specifically calls for reservation records involving Diddy, Daphne and other associates of the CEO of Bad Boy Entertainment. In addition to reservation details, federal prosecutors have also demanded email addresses, phone numbers, forms of payment used (such as c…