{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "134142",
    "entityType": "User",
    "nonce": "0x2b465f64ad9cf7ab1be5b57a4819fc94191bcbaf6f35ced3f82c20b9a24bdce5",
    "signature": "0x5af60ed0612ad7415152e2fbd095353219a6e805d10ad3ce605e4e5900584dc95b31f7f6a95b9fdccc3f1a3a1cd0a0c3ccf50a2429d2f5c880c56dd80dc4e92d1b",
    "signer": "0x36d561a0A85f6dd1a94f699a1077dD537A799687",
    "userId": "214954322"
  }
}