{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "71357",
    "entityType": "User",
    "nonce": "0x728efd1fa28559e1831f498ad5b58a0f1c534b4e9c0729192b5455401c959b64",
    "signature": "0x0003962c30bfec1830f376dc0c2c55d7d0c92a874be0f2fb24177d6a57a68d68190e2dca13c2d0712b7480d93ad4f84a7d94b9a009b94c1f688737166502fa161b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}