{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "89433",
    "entityType": "User",
    "nonce": "0x71e995b5cb83fd3c77d17812750c3371b941ca5e6b26b987ff0542a51eab90f6",
    "signature": "0x4608adf332301767a042e9bc2f5a36e0b13e25cbcfab30e2acb53ac68bbe82b31b20386cb7d2ff0dc714e20464cc2c2e8c6b7d80aaf19c2b03bfc251fc51a5221b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}