{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x07f64e3549e9f2137ec114217b35df692366818a103e9fc4d69abb96c978a8ae",
    "signature": "0x3d571a9e94be970b469b8d8ab1dbeebc07b48e03f14cc629ab3d4c9a4ba520152d4aafb52808673f540f8d316e39cfea11cf5bc7a688418adca014044b6a3dcc1c",
    "signer": "0x1F3aea6Ad99A4c8cBF2DE7047740F7D3E4e0730b",
    "userId": "928301477"
  }
}