{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "667809204",
    "entityType": "User",
    "nonce": "0xb830de87b846b8481b197d1cec1eed710a3f5d688e47ad173a6b588feb92720c",
    "signature": "0x6c35d214449f0e778e4b1eefd317969a33de6d7e4bfbe6d3122abb6adc4b160f1abbb621a91657e307efb1f28432f86b9e349a5c43e776c1b66f36066a986f701b",
    "signer": "0x61ea441D4688a4338ce4Cd94Dcc6Fe22baa6dD06",
    "userId": "850464732"
  }
}