{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "854614078",
    "entityType": "User",
    "nonce": "0xb833b9d5d84e8947fbc9d50f6d3f53533826e2804985fb35d8fe52667e8ba3b3",
    "signature": "0x193b39d1552ea090d7fac337f736b7c0edd4cf0f38b5602d728692a3916f3009356bec91cfced12a94a8c3b0aec8ff4e9823e0dbc46ab3b952f0f0cc83439b3e1b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}