{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x031a9024e6e96df4a4c0e24f80ffe425398b0a56a11c278f33ed9f22da81ee27",
    "signature": "0xe2e138c29597fc710096f5f9b04ad8cd5fa7c10775349c26a3258195def31c1c578586157e25ae561fb94fc5749fe8203d9b3faf980e234c7e6fd2238c0a6a081c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}