{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "593684426",
    "entityType": "User",
    "nonce": "0xcdf5c93fed3fb40696c61502344b839c6710285bffc62652a17c198815af76a6",
    "signature": "0x977076edb88d13d41f97090705683d78dc2aa398867557ecdf68766a809776cd6d234454cad2b81f41c49281e4590c54366dee83366845b0efd37e95b16612df1b",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}