{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x9d925749d1e1ec9b49639b458cd5464f314c02edb679ebc2e285822bac46a9f2",
    "signature": "0x1101327c17e8a57dbf811a14391eecef75b8b97156f3c214de6716d33c96bcf05d15d70b38b5fc84fe5d0340f72bc3654612249e97fbd1e93de9f957d27c2f091c",
    "signer": "0x9BaE2e1849D39772019b4AC3468e938a232f73ee",
    "userId": "948584098"
  }
}