{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42216",
    "entityType": "User",
    "nonce": "0xc64e0f9b328cfcbdb675542d2d7471d93a816c43b5dda9ffe03063103a6eb94d",
    "signature": "0xc58965978f1d561d61c2e39cb036e762a7de8858c0a8273c6f97ccd89887d34f1ccf6cd953ca434522bfa406cacb1facb6305bdd80e46eb42bce076c8fa6a6481c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}