{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18192",
    "entityType": "User",
    "nonce": "0x332746545f902381447d5de4b09a0ef98755344c0a28b46a6c231f497bbd323b",
    "signature": "0xa14e9b5b54097f80f20bfeda20d0c8df4b98afa89fdf1c61599f3be686ef9827211cf814becba055ba5f8418166518831afadb1dd1b3a76f88a9490e025f6e681b",
    "signer": "0xe1eAe9Fa3Fef187944BA6cBa5C534e1ea257CA4E",
    "userId": "344552512"
  }
}