{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44142994",
    "entityType": "User",
    "nonce": "0xffdd98a5799a11a263c87f0b70a1c84fa8def69691c15aa5c2656c3a999a4e28",
    "signature": "0xc5776db6d1c6aabe28ea1c7bddc674c63a1e17004c8f265208c95d95d09d3d9b2a908b5ec61ab84fe6097c5e1083791da706bc24376b445e314704c00ce6e2071b",
    "signer": "0x245cEbC9574d38Ba138112B36a6ee27cFCF48cBC",
    "userId": "75458976"
  }
}