{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xaf75aaa2367297e1801edc87b12b66a0ac53118448b20cbbe1834dc815af07e2",
    "signature": "0xe3873d08607ae618ed73ee9810b5bba8b650728767978b0c582adbaeaf7ac25944945640440f9984bb2cfd613119c68698cadc92ef29f1dde21c8c81dcca28951c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}