{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x81eec1046969c532b51dbf8d67b353c1d5bad3aba37f4d1c3452108beb0f93cd",
    "signature": "0x2cc089868680f0bfed0cfebaf9e13fee6b8cc812c4876058f9d9b5451e9529083489e2da06a12487906b682d412fda31ba4d0d3be4dc92ee6eb084b0a84cd4021c",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}