{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41600",
    "entityType": "User",
    "nonce": "0x6ac1562ef179e109e83163e36bd309e4fa26d08821baa0aeafea88ec11e35012",
    "signature": "0x44a9e688c9c3f7a937dc7ffa6f93cf3af924f596d719751bf2cf7242ce66f3526b56a71478b3d5fa3b1a2448f9f991310ddfde6b140400339a4588ae3e9daf051b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}