{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12883",
    "entityType": "User",
    "nonce": "0x87dcb90e91201a9d2f6a5084ab5268278e70d8bc794d4d517a4b599d0210f96d",
    "signature": "0xa2d2b06345b9e6a19df8fcce30572c7bf89c83949f76a5527b834ca6a2a7c5f06d7a829a20cb7d6f2b1ab5837206594e1183d42f2c5c7483a3a6db007991fd1e1b",
    "signer": "0x738Fb353b57EdB4d1f33c0049D33b204243db2ad",
    "userId": "693463302"
  }
}