{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "667809204",
    "entityType": "User",
    "nonce": "0x33dee157abfa5f732f12377538217286260cf02dc7fd312ea75fa568f222452e",
    "signature": "0xe7e8a992f85885b439e8f4b94ddc104302f35a956322a88fc7c79c7733b38119154f1249f37e7932eda672031e9fea690b28903a7753a5d222a82207ce69b79e1c",
    "signer": "0xDDCce44d487ED1f7297d836241df35AAB6D867b0",
    "userId": "22610281"
  }
}