{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xe75d34fec99d0ddbac92dc985d9a2c20a0f5cbffb37afa75d83e6639cadd6b11",
    "signature": "0x7446cb73bac5116f704e46a450349a4519b9313d2200c5994c2227b9577f548d5867681b6fe80be87bf5ea8c7989df36c0acd0acbad170be9a789889c9a270eb1c",
    "signer": "0x0598FC797642238bFb08593189CB8B4b21aFF411",
    "userId": "179352401"
  }
}