{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8583",
    "entityType": "User",
    "nonce": "0x2a2671eec96eb944fb59b3d6a3133754a5a56200938d6a4c75f75f89a14a6c8e",
    "signature": "0x756c75ffac018f5e93a3cc2fa36b4f82da599c408ffc03749c49835959ac5be668ecf5a9396d92c12b26e9bcbcddfa7f7ac8c2adc66deb0f45939cbaeb59830f1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}