{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "332488",
    "entityType": "User",
    "nonce": "0xb5b13b83393884136685237beebe760ded3762493b8f050685fcce80768c7f63",
    "signature": "0x747b76fef686aa5d62d51ccf63e0ba1fcacd4ef32867dcf333e35a856edccec82594526386a54a3334d6e08fcde48b9705d0145beda3641e9f4fb4460e82f03e1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}