{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "117827",
    "entityType": "User",
    "nonce": "0x4b47d90d509467a0903186ce31f253f53f035adf47eceb016677197580a4a57a",
    "signature": "0x93ee2ddcfbe34ce9587dc3fb63bbcc763344c548d4455d57553dd5a010f8af9946604cec2331bba3ba49253de0504e7387fde83d496d772f6dfc8ba123456a441b",
    "signer": "0x7254B94fA9e18b0A61250249Cf713a4b7fC91FA6",
    "userId": "192864997"
  }
}