{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb39ffb88817c9f982fd4b35e3fba1c72e5ad8093af989656ecfd40d1c102971d",
    "signature": "0xaf02317e9aefbb796f484392561ca50e517a0e72fd961c3cd0f078162d0f79354541007620ffdb22091ec2f1154fac84a60f78f93af62b67e10234e169266e9f1c",
    "signer": "0x3Cc890785b74600897A25902Ab88D0246C2C1369",
    "userId": "413149792"
  }
}