{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "877304859",
    "entityType": "User",
    "nonce": "0x10b5e0bb14416b32a2aa00b5b9d343edd01dc8e6cebb4573d187630f93fb2c15",
    "signature": "0xcd0919f83976969c85dd2faa7c5bc77d917fda6a9d8294c63fd6e4db6420e9fa5f19b1a7061a3029ccd8c9896cb73d4b74b938406432eae62b9e59c41d6a16e51b",
    "signer": "0x45C682dAb9Cd8ED5e055aC2F6a860Db5F14c27C9",
    "userId": "611525840"
  }
}