{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "376285",
    "entityType": "User",
    "nonce": "0x45b8bc8cfb01e6bf3711b3161e381c0324ea3a483f8027b948e8f51c79fa80e9",
    "signature": "0xa6ec898ba89c9f33fd2e0dab78f67f4723b111b73dc97316ac6a8d549b3eaf981cd8ddaff38ab621740ac8ab2dea0a07293d44a8be92b3d080ecbb4c809e1dc01b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}