{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xbaf0081d35e7ee554156502c5793d9ebd7f2b83fe4bb5515fd223a766a20dc7d",
    "signature": "0xf6696438ba41ff8d0f686058818142785d1d2555af9fa0ed66b308f98ca49aa57af883a8c0484929ca9da92d4615d1388b2f1c0120558d379e903767ed37215f1c",
    "signer": "0x05879c5e12AD06542dCf5d3192dDDeaa2faa3754",
    "userId": "445555"
  }
}