{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "375226",
    "entityType": "User",
    "nonce": "0x61bff82a1b1902134b7446e3ff068f278d489550c12296d400ef31e572823640",
    "signature": "0x76c8d4d48af99aa8f5d384f554266fb2998fda170c1f010825e9031bbd8d6c3b4adcd15c75a3874f734fc4dbe60f72fd3a1f6f906754fd27fb18c329260ee7b01c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}