{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "257465",
    "entityType": "User",
    "nonce": "0x5d8ef16b06c1ecc3ead95fa92438a619ac6f24a2d8947c49ce4640cdd6c6407c",
    "signature": "0xb0f7007718af4fd71e4e23c53797a865c72f63dd727e785b240ad161d031149a6e8bfda6a44fa564375cd2dc53c9dcd77f70e6a187da46e482084d688b90f1481b",
    "signer": "0xC35123bF05ca0B3A7B333c53E47bcd9f9DA864d4",
    "userId": "33896318"
  }
}