{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "853985883",
    "entityType": "User",
    "nonce": "0x8e94f75bf252f2822c417439bbd9af369622a57ba669eadf84e23dda46605d51",
    "signature": "0xf4749bd147b48c9ddb1a9491f2bbc1539dce3ff5b639f80833a28f776b6f1e1a01e6edc423e8f821583377be668f25c9870829830f3fe30796e65452b86e52ba1b",
    "signer": "0x0DB6b1141A3D51C94350eF6E862bf2632C3c47af",
    "userId": "149784378"
  }
}