{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5e36ccde567fa2931f2bf6405b89b04fd2fb448c7c9258b43b13a5134c838d82",
    "signature": "0xbd21c1bd853ae6126bb809d58e406e2fbff7a71d171bb2d2dbfb953a41fcc6dd54fde6af2708095666acd693d4d8962cb74c5386adcb057c63d95282600721fd1c",
    "signer": "0xD7802a66Ed086bbc392702454BfD14ed84290503",
    "userId": "960393016"
  }
}