{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "198394645",
    "entityType": "User",
    "nonce": "0x6f4f5d541d235f032dd27b69e025b33b842cff09b3576e36ca168030c8b6b8bd",
    "signature": "0x440e466e51a22d5e9df88d28720c9afd29074bdd15c6d7d365fd291507be8a3315187f8947d2879e1c04c498fc9cacf9750d3883c76a435d8f884486302949351b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}