{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x14b3458dbb7875ba4cf7b60eb87484e7218de875cdd529b8c61417fb4204fa42",
    "signature": "0x69418108355bfd8ada727b71c924a9d1b7593267f93b4fc97e8144e86a6ea2796ce2c0a486a4adb756db9297ef9480d91f26f80b8b9ee2563b147f2d455b6fbf1c",
    "signer": "0x7952e4B13A538648424c11d3cA7137B04Db5ECB4",
    "userId": "404611865"
  }
}