{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe17df76972d0b50cb2310a45b12279e9bab52c0d9d66044dfbc5686261f98d5f",
    "signature": "0x3ab24a7b6ab11c160e815780f199aece426bb648341ba47edb56fa4f4d5dcfcb5a5b4a83fcb10e7ed4d500c6580f1aa166dba9a8a4d8cacdc99e09e5901a188d1b",
    "signer": "0xC24bF1b9beef42229F5912045FCb2DBccb0C68FA",
    "userId": "129733318"
  }
}