{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "99832",
    "entityType": "User",
    "nonce": "0x18a52acc0c4dedc26675e0e542365b13d5c143adacc98a52e63794242237a246",
    "signature": "0xd0133020eb13de625d4556045abd75de3db0ef36a6150e1fdd394acf765b5c051c281640cd01dbb719d015df1860b359c93e00fd74738a16a8f56e6cf6092fc01b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}