{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2595",
    "entityType": "User",
    "nonce": "0x5fbd8a0f078304f04a737fdf685c1b7733bf67a19bf2c64017d68bd70f0db104",
    "signature": "0xf13775e83e7866e41c0eea4f509ce414eb98f63921d5f88e4e89f3fcf875dd1a53d985ed3ede2305449f84d5771ff148dcd446b5ff279ec92bffebd54792f4081c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}