{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51324",
    "entityType": "User",
    "nonce": "0xef9f6bbe56f1b3c7dddeed906dab39537b3244e73d53eecab1a1382e49214a3c",
    "signature": "0x47916575e03ff94f81d2c74f51aa26c015c9af525131811e607df5c9a1d77236406394430aa04d0fd4dec73f00a56bc446dbddb39983c0a491a2c7c6d9b52a691b",
    "signer": "0xc6ED8841CAa23191AB374bd7d546F29746aA36B9",
    "userId": "441723301"
  }
}