{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3407",
    "entityType": "User",
    "nonce": "0x3bfbd9955a1744bf5bcb292054fa214cff662aec5b8d9f0c89f57b2fd571d6c9",
    "signature": "0xef073bb5568be408272323791f625cc5ab80885ab5c698215371e8d01a6503e04cb10f1122b143e2f725a9aa361b24d341c5d0a2950ff901ea383d17e024855b1b",
    "signer": "0x08411E4c6D29293B936B93E5486b2675FA3a4c98",
    "userId": "237624336"
  }
}