{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "270103",
    "entityType": "User",
    "nonce": "0x62af1f835073851152ad477373d08cf4bfa717c51f9afc5ff0b8a7f35f3a82b0",
    "signature": "0xfb032b62ebeb731376d67aef06cf0e48cedd16d7b96d92395f2829d11373b2ad22f263c7a34f83edc7dc6999f25420426346582fa48eca1f690c1448e52671cf1c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}