{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "134075981",
    "entityType": "User",
    "nonce": "0x60e4db594844b4a82157a7ab5a9db93796befbdcdc26755c096227948bea6cab",
    "signature": "0xca97aef58d2c2abceb46b175da9985d24643fe46dd5092e2617e8bfa7192907c51f64c43239b3d10c8fbf78e9208b52a9850de1c988b384d6a54b1f11928538f1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}