{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "447081832",
    "entityType": "User",
    "nonce": "0xb3052e6e7eafdbd095294e5e83a5b5e15aa0fa7faf1a69d053f68672ee1d7f4a",
    "signature": "0x2134db7a8cd346f8b21d64ed042f6bc4e5e5958d4af1ec7dd35b1ca1d21e016b71c2a7ee7c04afa594903c244372fffba545ff5eb24ac3136db66ae02d1e89841c",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}