{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xac4ce8e0984eb52d2ea02e678a68ed0a891ef6977f04b080cf94a23a7606d746",
    "signature": "0xff6c1c63b81aee05a7bdf4fad85369202b32c006ad18f5babc75dccb6fc1f52a72678869c277784b4c9276898ba433ca8c95f38e44523e9a6c9e9ad44c430b971c",
    "signer": "0x2Be7ed6ED9E8fc866CB691E0d1B74A1E0C97f002",
    "userId": "863921077"
  }
}