{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74652",
    "entityType": "User",
    "nonce": "0x9fadc7ff2f21d968b52823f3382e4f6da2eea381d985b8be1d39b4313cc67d0c",
    "signature": "0xb441c9416d2b686526ff843cdc67d60128da17c8eee05d6fca4d4da1574ed47d516e26211c767842b58c501d0dd791c19958402cfa764a91f7a6055c2e7e074f1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}