{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x507e385c002dfacc60eaad28288cd07cc2079f11e79d6c6846659f2886e6ca32",
    "signature": "0x9e5cd64fdc31aa06cc20f7f511f539a81fb4e374fc44e10fa1711e0652cc67d152e6b4dbe72adbae15881cda13614dd57e01be64d81c7aea88e62da370daedaa1c",
    "signer": "0x8C872Fe63A41D563d9e61D2a3648AdF4a224Fd1E",
    "userId": "922774888"
  }
}