{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "831117417",
    "entityType": "User",
    "nonce": "0xecc5020db515e45090091622140f3caa6a214f1650d7900aa8f0602aebc2bd2b",
    "signature": "0xd8e37a81c279c4fa25c98d000e1a54daab0d1a2b9f7521b91469ca08607792671a05109cae936fc35cc231b4115b00253f50e64f79da368d9141af0b9a1a88351c",
    "signer": "0x9b6bD4505e2bCfA88acc8680F463a96DAddf1d0d",
    "userId": "213208842"
  }
}