{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4322",
    "entityType": "User",
    "nonce": "0x8f0aa363de28a52aebf8c6dd906505eaf43e04f726730c1c63431422d4ae8d6c",
    "signature": "0x9cf20bd603d8c2b77cd950fb3a8bb4c01699c506440d27e5c76ed03b12f5dfe249f27c361cf99acf205573940c045b46b07599a9a93799de0eff3a873f5785961b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}