{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1fdb89e791938c3fb5379be6668ee2226a8c35d471226d1cc42e35a1e7546f4f",
    "signature": "0x4d574b7082456d06e29fa8abd4596c2a15a9cadc6c165d098eb78857b07ff00b1975e57029fe7e93bcc9ece089e5f6754a7c3d86bfed13a4f5b7143f1058c69f1c",
    "signer": "0xb5AD73D226fF6e97370A05083e9a02E28e2fd34B",
    "userId": "204132933"
  }
}