{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc5c924099fa6425ca5565bf4c95e650e97433d6b3707a75948f178576e486509",
    "signature": "0x5d2b5e5bdbfd65e4358e8b95d0964701be3f601e7dadf779825d58e84d5292ad1ec6cf946d9e06422537a53390f3e19a2e8339ad09d697a88fb3035124aeee311b",
    "signer": "0x59765b22C96E88dA578af23E8611d6ca2dcCd7C9",
    "userId": "377610060"
  }
}