{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16449",
    "entityType": "User",
    "nonce": "0x26f07461935fda5d9b3838be6d14f421c2f041b8f6be0218a574b45ddceeeb58",
    "signature": "0x5a04213206f258dc0a7e0833b04d417c7b287b13be294bf5afb372fadba415c910cf63a89e068bf1d4f4a9d9f48fc27003192f363fe0741b7135ee2236a5ae041b",
    "signer": "0xC35123bF05ca0B3A7B333c53E47bcd9f9DA864d4",
    "userId": "33896318"
  }
}