{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6817d255f4c13f580e976a7aee12b393c74d4d2b182cdb5256b479acca17e741",
    "signature": "0x63beeabafcf91013a4fbb748e628e49b340254dabdda8bb7423eccb31d6dc4af458829c05635b3bc9ecd08b67ddfc516c567809f71f046118c70b32eee4f730b1c",
    "signer": "0x07448fDBa7763f74Cf594D30a9bE1C257727F680",
    "userId": "797007139"
  }
}