{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0xe076d1ed30af397fe023e34fe7067acb395e1eae6f9c7dbfcff26a5edb72c149",
    "signature": "0x5e9d353b6fe7bedf84d0a0b8ebdcf7a8f31715f5eb9a251621fe7a552c889bcc1b0c3c054d87dbb84e91e058b57d2470b4116a7ce1a1bc4306893ab8f885fef41c",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}