{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "128329",
    "entityType": "User",
    "nonce": "0x77ef1dfeb1767cbb884b5fd2c788e7f970505cd0c87430e43aebf890d8457fb0",
    "signature": "0x322c70a77bdbee27bcf4aa3b26af3d93a3b9a8ecf317531fd9ec210c5642db861c93abf7258417035db5328b6ed7c2af2ecfe62087451b8440c5de5149dc95711c",
    "signer": "0xA262fa1E6a4e2d4fD07d405D0572e986156e8e19",
    "userId": "16238"
  }
}