{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0x5f75065fc5ac2052c09854317a38e7c3912d6b302699df3f41881c43d4cb3554",
    "signature": "0x0221a8b1c7b13ca832b8da3399377dd2ba5379a609859851153cd3e6d16c33725a6aa1aadf5ebdd71eb292a042d35af7524c82956c107f2e1154f472f6f7a1001c",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}