{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "189460",
    "entityType": "User",
    "nonce": "0x64d8d7977dae1c228ea9e5d42cdd892767af80fe9ef94f791d6ed88700b9c77a",
    "signature": "0xbcc310d2ea4e4da2a6666bb5e060a97e5a1159f5e41b9f3baa34e6d7c0ff2cb121e6c57440ee0e4be3a3666cffc1c24c12cd933577e94e872c23b26ca3970bac1b",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}