{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x96b310e148b28dcf2e5d8a6b1419528534ad7108f72a1bc1e92b5be2189cde7b",
    "signature": "0x778f6224570e62dbea6dcb6a39b7558825a0bd2db97257859ac9025ff1459696358b6b86c7a3e997715e93f8215709412294ae3d4f6277567283dc2068fbb0c71b",
    "signer": "0x33c702d534707f8Cada5DdD521C5900827973f1D",
    "userId": "5642"
  }
}