{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x25694333d2666cb6bb6636562ed50bc6ff2b3c6ab3df743fcabf74f89b368abf",
    "signature": "0x4b7f856d10d79d3ef7a6e3ab1930b7d0256d0fbddeaf5ffca2db1eba4f3e272768c5f18767cd548f20d84adf6008a8db64c1bd5b042f0d9bf5cdfb85fbb8fbbd1b",
    "signer": "0xaC0e591e6FDE4113579B09Ca370F0aC7aF69C08e",
    "userId": "963788362"
  }
}