{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4c46e31085fda3802cef4647548a860974cc9bded28bb1aeea5bfdf6202c0178",
    "signature": "0xe56d56b146a7e4d0104fc1a6f1d06c6c06186460d03d3a108df2d194bd0417c7447aaf17ae997b8c68467eeeca75ca15b87f23283e6ce2a52c53ebf8077215771b",
    "signer": "0x6f17b2b67f60B3FAE20DEFd7aF81DD4Bd693EDe9",
    "userId": "654634232"
  }
}