{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "152450",
    "entityType": "User",
    "nonce": "0x642cf1024285a5713d1b3bd527dd28a64e98673fe14d2ea5afb028f137e70d1b",
    "signature": "0x496af97c91d9eb0cc918ec4917c13adc5d9fb28e91293a71667ff637fbfa8312722d92b07eb4a4564017d4a3196bfb5db9ff058950254ea6b0c53347491b02ed1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}