{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "293",
    "entityType": "User",
    "nonce": "0x3b138465b2705802bf0ea5c0e34b1953905178366b6810bcc14a61d1036be1ac",
    "signature": "0x156a3a56ffca96eb087e0b8de01208aa41997e585fe5587ed286b82daccda83a4682dde8c7c42ca7ce6b4cb307b74c4a2f561e97f1be5cb2d4ec88507bbb6c181b",
    "signer": "0x9837C03EAdfA74365Cdf4e01e6840D356104bFab",
    "userId": "911622928"
  }
}