{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "75740",
    "entityType": "User",
    "nonce": "0x569f902fb719487a85e88c989703ea3b05d16b93c2bdda780730981dc513c0a1",
    "signature": "0xb90bcc1046a16899b0e0355e77180db2fc2b64e323ed9c01ee1da60515c557d73dcf2d02df581fc722eb02832ef76b6db07e0b328fde8720481519ae671649b91c",
    "signer": "0xF6F9F433Ab5dDe3c96D63C2fFAa64b610599a410",
    "userId": "80682"
  }
}