{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4756",
    "entityType": "User",
    "nonce": "0x0230d1506ea5664ba41e41fea8c007e0425cfa5f49ed19847c7398bb387e9b45",
    "signature": "0xc6a929374517738d8a4e5c29f2edf33090d4cf71fcae71625fd9d8ee2b250985683301546e3342fefd6647a031946ba608fa1d7a050ca1b30d2446f82bd768081c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}