{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "460503860",
    "entityType": "User",
    "nonce": "0x0b11d0c9ed9c26c6d9964882741b9d25793658defb7ddf44b49f2bbeb695615b",
    "signature": "0x0664da4221b52a880f2e5aab4dfb27a3c7ec77f6ef1c99913c043b4a389566af0accf8fef4d23609c281e534de2c27c47def0c066226fd819f148648bf88c16c1b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}