{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "923480019",
    "entityType": "User",
    "nonce": "0x6289f6057978b45adb643dbbec0efeeaa29e00c111d7f04b7bf0b4414b773b1f",
    "signature": "0xc4bb83629a3028da7cd6fcfa70a7bada7d6752ea4a6919192ab7f497ba33a55e7f1c964bb425c571d6e3f1ccd633cff1eba600062ce5886f7ccad9995cc9a5421c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}