{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "411106823",
    "entityType": "User",
    "nonce": "0x2da41ef6fcc80769c9c579b6c0fb5424529e33322bc6820476cb9384aafbbf10",
    "signature": "0xc647c5ca4363ef132d4eb86a1769c3fe65255b37586a310a0448a0a675bb66eb189eecca2e036a82370045bf1698e0a39a9487a353194fab23f71b77ada041151b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}