{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xadd6e27a377cea53ecb87bcd8fce64e5e5a2f75181991fb6c456b39f6c45d1b8",
    "signature": "0x693ec19a4ce3e5276dd71d77e7f12b70b1ec605f0378374a05dbfeca367de22d1f861ef54ddd09ed7ae0748cd1ceb8fc74e83276c744186a231ff901a48152da1c",
    "signer": "0x75B9028Ecc8A29E5b9aeCc31B27031AEf2d2D3B3",
    "userId": "927590939"
  }
}