{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0x25516c7f7185fb8399bbbbdf480dcdcca1b5c491ab9559d9d22a93e6d873ea03",
    "signature": "0x1fd5a04116def1993265484c2831d77e64be49e6a0b147694866cd1488a9b476295e7a38b2fdad13b62179f1e12e8df752c26d2b46ab81994771ae933f84255b1c",
    "signer": "0xf3eC8D1463A23CdDd8e3137d4e971DAD05FB11ea",
    "userId": "451435291"
  }
}