{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190351",
    "entityType": "User",
    "nonce": "0x063aca2bff8e1ba37f3528910f3c6d21dc4ba418ca61e6d30c862b270099c161",
    "signature": "0xba63fb2f3134d4bb8fd0c1cc4869d9c8bd1b671202c4a641a551f52a66dfdb9c7f4b79dc1b3cd6d186bc9396d6611bf25550db6fd7d2f761324c0dfde1b81cd51c",
    "signer": "0xa483554f94b9C669B84049D8E78edb9e1d67Bcf5",
    "userId": "339858304"
  }
}