{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "735980234",
    "entityType": "User",
    "nonce": "0xa2acf81f8d9734ec99ef91fc5907a10a6e92de5aea8ef07da02bf73e5386d7dd",
    "signature": "0x736a1cf8d5351e12b553c46b7e3240c0875094b0eed71a9caf86935a327d056b0adb2712e35aa3e769d12cb504387db8cb1870a7d34f12fda70a822ae3b1d2bf1b",
    "signer": "0x6440Dd7ce5eE2e610F909B08098D39f89250637f",
    "userId": "503764788"
  }
}