{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "170448",
    "entityType": "User",
    "nonce": "0x81cf460043a15a9bff388f1ca4045abd263c00a99d662fcb035b450ed0dcf8ab",
    "signature": "0x53932c32e986e4633b6b2b0fda86daa8e5ccc225ff952daed470503073ffe11702de1eae000338828ef7f3dbc87e6ebd394d81ad10bafd06f8b5d90d93a1df1f1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}