{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "218348988",
    "entityType": "User",
    "nonce": "0x4e73f945147c5df8f3b377b3a7c2cb5a70a06e6974cb79c24ef7724aa2a00cbf",
    "signature": "0xa79cc9d50f63d4437f52391f2eaa58385bcbd82a9ba8e4c248bf93e4cd52951d2f0fbf143a58b09bdceed5cb1973ae630849ebc8c41433845b69c00939022bb21c",
    "signer": "0x742Fff9be20F80Ce7285c8Ab12B9018Ef3Cf14F0",
    "userId": "111467392"
  }
}