{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0xeec60cc820516ebff1127e6f4bc7f74982efb4b25248feddb06f0a211a5aec60",
    "signature": "0x1bf930050670851afedd9585031f51e454c5e908a5cc0b1d19761b4f09db71c461582b0aef8740438a386f22b5b22fd8859be03f3566152cd6ea9d1c0057f7261b",
    "signer": "0x674FFC02F71bdD4bD3Ae60c618579EBDD541E397",
    "userId": "787787230"
  }
}