{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x823a0e4b4a4c8f3af68fea2135bdf4d0076f58a3d62cde54eadda4b1e9924977",
    "signature": "0x6766bd6c77680648f689f5bc8fbe719bccf8ff2eef7a275788ddca8ffc6a6a3534d581957ffefbc5a22a615364fa4ea1866253cf3ba72da3f0be795b57375bd41b",
    "signer": "0x6268f3F36E0fe8D3E139bC6d32d7539887721848",
    "userId": "418312750"
  }
}