{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2",
    "entityType": "User",
    "nonce": "0x5de870f2df3042be1384aded05f076a652a9e1e43f9835683fa120eaa7b8521b",
    "signature": "0xf8e30bf135f11d52f9ec88e0ff2135d806e2794136f00131d8830ba2e143bd8a40d7b3957f4df391f924d358f8abb4680ee532b87b2f4e3ee3889d78fd1172b31b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}