{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77608",
    "entityType": "User",
    "nonce": "0x2e2417b1fd95b91625641dda12980b26c31225a72efd8f49b0beaeec08650ed1",
    "signature": "0x6d021cc5304bef928631cb47f0616d2fc3659da48fc95d708876c9376e6f5c393688fb2c6771cdd4cc5bb80aaa4cea157f4a27e129468a0177269f531265fdde1b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}