{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "205438659",
    "entityType": "User",
    "nonce": "0x469adb78112e21d090f1eeff4ebc081992900edb5f8e24f2524d20cf596d32a6",
    "signature": "0xf5e21cfe9949c8ab103185c55e6cec7471f60e6b17c596bd6778bb5d716f96c24adf3cdcbfa72e2f2f89805650a598ab4ad495be571bccb4623fd5afc1ab128b1c",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}