{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73354",
    "entityType": "User",
    "nonce": "0x4672b68bb3626b1eaa9adb3ec450bf21a1e5993591ad6ae4bdf73dd37484bd53",
    "signature": "0x5cb175ffcbf3067bc10bfed25e4430898540f6bcc41d7323a5552c85db00256426201323f71ed0241ec3b7c44178288aff31f77cbb0f100130a0ad733d506a721c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}