{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "323361833",
    "entityType": "User",
    "nonce": "0x6d985fbacff5e7f7b8c3cec5bed5157651b92e9dd10ea6bce387d027a946bf9f",
    "signature": "0x447e39d1d538b81b4170daeb98dc94faafcf8d648ccf9e8ac9a0a63af2713ee2288db917114e796f932267b5b10844ed8efcae89fcf79b594ace49fa5993e5841b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}