{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "161854",
    "entityType": "User",
    "nonce": "0xfb000003eb6661dea1193953ccbff09f1daf906b4c1a5fb8db46b6da766d374f",
    "signature": "0x4c13bdb7fc4481ed8f99ff794f982d42109a46682e2b25d1f45052f78c034e276ee5484d9b1af235247b1ced5ca3ac2a3c4f2fa48cd7ea0c53c10052cf6988161c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}