{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xfcf578326df7721d50f2469fb2ca362adfddb5712aa7b4c40c51168523b81a46",
    "signature": "0x6ca91c4e31d7ec15595b8dc063ce1794162c76518b54f138aaf885cfb2fe251f5e5d1005662757d4b34bd366657a01fb75b29a06aa7b80be285538a47d83beaa1b",
    "signer": "0x8630BD2201Fc204d20adB866954f02208251668C",
    "userId": "72079189"
  }
}