{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xfcd6c0acfc0272b6d8d6ebbde01c1d48ae112eca3a8bd3368660a2811d5e8fd3",
    "signature": "0x20213dbfefdd152c69fe687fea88a93b8c201098e6e7d8354e8291f0781e2fc922ba43cf27275b5e17cc71147de798d230f6ae4816241266e1922030c207b59e1c",
    "signer": "0x303fD6F7668Ad0AD901434B85eF391E249785A2C",
    "userId": "179777073"
  }
}