{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2559",
    "entityType": "User",
    "nonce": "0x2e01b228c287f4bb853e1fd0ca64d47b54edf9ced2330ef1cd7cd6703972c93f",
    "signature": "0x10728556effc2922a5d09343480475e6cf7a74696b0bea19024aa0f1a8233b4831703ca28d292036661a20c6d436915f0c08a0d4b74cbda578ff8e919f718c261b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}