{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5687",
    "entityType": "User",
    "nonce": "0x8b91259771b308d5a3624a3c9bda96927c060f2e735ac07d891d4ca4692cf07b",
    "signature": "0xbf3961e8e84b05d91852dd97c6f6b9a7b94415bc8aaa046ea19dfc10b56995f419e02fcf4303a0379a0720bfc920f8de01d2d6ca24e4029a5c442e5b28af115f1b",
    "signer": "0xE4c0c73a0c0CD7f65f1bE942f8127c8753aB89D9",
    "userId": "857284925"
  }
}