{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "150282369",
    "entityType": "User",
    "nonce": "0x44de9d3f051c97d3c423c5ad830a2f845f7655d0487457c564af5b494f190579",
    "signature": "0xf8fe27cdaf0632cd8b8cc80a553702dd8d77592bcf1858f05c26faa895b90fa8283ce1188a3443a4ffabfebe899a4bf89fbba14c42cd0e6da507bc9261a588bc1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}