{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1653",
    "entityType": "User",
    "nonce": "0x4c7ac54f1721452a84d07b60dc0a56d4522ae397ad8a6bcc14d4ca27f57c7568",
    "signature": "0x43847580ccfe97d2a167189f34dfa58c61290ea6828e9c194eef65ae080ebd417b277c1c57d96da1c41f8e8e616749812430d550984fb95c5f0538b49fc2c75f1c",
    "signer": "0xD7Db519a2A03374B0548c02822bE88402aef1E5b",
    "userId": "715241773"
  }
}