{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3af78c5a3726deaed6fd684a21c966e6c6965d2f1cc3c156a1f390bd0681c02a",
    "signature": "0xfc239ac5c5f2dd5405c7c26c81e8d3ab90d27c00d678e74f484ce554724fd7c47610dbf5808165495332654987c7884df136e9548e7247d794e3ee29a13066ec1c",
    "signer": "0xe1eAe9Fa3Fef187944BA6cBa5C534e1ea257CA4E",
    "userId": "344552512"
  }
}