{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "193389",
    "entityType": "User",
    "nonce": "0xf7f0f94b8b145238e3b17caae94f27114860bab398ab250de7dc2dc6fb581fb6",
    "signature": "0x66443907cd0d1697c5ba6ca59694278f480ec54405c05fcf6f62a06273c942e17adbfd687b4724434607e71409f78e901dd17478f2001ed52b7e976892cbd5151c",
    "signer": "0xBB7b9E0bFE457D30F53C38EE5d7Aab163550cc05",
    "userId": "455978043"
  }
}