{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x6c062cacbaef21beedf6037acf1fd5796c81224e944a8464ae7ea59f110eed15",
    "signature": "0x8adc10d39fa51177c904ae6498a25097673b6746a3d144c0c385827565db96534434d65218e91615ae32ea615874706fc4c3fa74c7f1795bdccaed69b4a288621b",
    "signer": "0x05879c5e12AD06542dCf5d3192dDDeaa2faa3754",
    "userId": "445555"
  }
}