{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "291528",
    "entityType": "User",
    "nonce": "0x2b2ad3eb37291c961bc5127dd2fda5606086990e2c45f616a402bb2ea8088e88",
    "signature": "0xfa46a6f10d79587f7cd297098e0ee594b6da92f1cd1c69767f624bb07836b1385eb66e5f7a6a06a358fcf791c671fd6fb01cfff3fa57281f1084d7abe51a0fd81c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}