{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "680483",
    "entityType": "User",
    "nonce": "0x2068d812a956022417d92b1651ec32f0a83565d09963d5283f9542963b99d57d",
    "signature": "0xd2b39c77c42d32c492f3acb7306eb5f3a8dbb87b428428c4714cac3883e1edd6033c1f690da2115f3056e099ba3a1b4b8ba18c76d733f98bb6dc5ebaaa5459891b",
    "signer": "0xCedE64dcD8b0FdEDBdADF4b0ba433797eD6301c9",
    "userId": "638733607"
  }
}