{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "714646433",
    "entityType": "User",
    "nonce": "0x678a897f2b3718fe2d5096e4b9f393ad89380766871dda77e836a9685a33ca5d",
    "signature": "0x8f56a51c3e42cd4c1bab6d6f747b64329f2e797320aa54163b2b10b9439d9e530d0ec051e9d9cf146327801a6617b9dc6812daff9d6df24e4f9f99315785fe921c",
    "signer": "0x2a14233e1f50922EA23fb817931968707B6A04c0",
    "userId": "727256442"
  }
}