{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "370220",
    "entityType": "User",
    "nonce": "0x30922f0032a7693df05a4402513bb643de4da5720974e93d1a46f6f4d250fafa",
    "signature": "0x6cd1cb255957c09457005fcfed890c5d38255864f80b65c3c4fe600076ab2f6b7c4be0e77be1eebb5a31392401354dd9204b9c6ac72b1bae262afb344f90bae61b",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}