{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "240171275",
    "entityType": "User",
    "nonce": "0xce17ccd6c0d838cc74dc14467ca845c020a15dafdcc204dc66b75f7060831454",
    "signature": "0xa98211d2365a886ebfa6dadbfa2394253921cf888737f5d6166b082d21f9cc69770e0f295560de30673345e0410587b890075b92c334890ff431512a52df93461b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}