{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xd9af45cec34460bf7b889f0b016e8e52eefe4e8ecbc01bd8f40c44a5a4607cc9",
    "signature": "0x7feb9fba72d8f98eef1a89f24b60d42d8073665f01d8cb2850cc911f15894685302cb91c5394cd705fe37435b05b1dd44243bdc20277327162c3c3b999a4d5cf1c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}