{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe92cf2188a4d4400ca9bce33fc6b7a89b242e9898860428ce99e07c1986ce7a2",
    "signature": "0xbf8d69a46ced6cb511043343fe2824c6e14cf0efb7ac2059ef7f45608c8aaa47546a41516d89f308e4596739548dbf46e84c22f256f632d2c7e2c43e9adef78e1b",
    "signer": "0x4A5B29c39dc57797461B1B488DB009184b5Eb5D0",
    "userId": "383181646"
  }
}