{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "165307",
    "entityType": "User",
    "nonce": "0x74fc2a1760323b042daedf738d4ee36280cd4ecc29622bfc5fd245d0122bed76",
    "signature": "0x7ffa954dbf53eeeb349a5337ad58a230e9cdba8adce024d893d6fe578b4c644c08f3eda5bf2031a8505ebea2e3bac3233b379efdadb74a1d27a157b5c0fdc21e1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}