{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "201894",
    "entityType": "User",
    "nonce": "0x42d2ae75651098c036ff7b2773177af85118b6fef2d4555bd23a84d54ddded96",
    "signature": "0xf7fd05f70a83882f3bdfd5c1fb0878de5222f52f16ae609ae77d51a2bf63aa74187c6d8780916e1eee8a85917311fd922fd14c67d5b8c1d420b67ffd5938f6f71b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}