{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4b67ccf7634b6902a2a5f3958cb11ca71a1cf6f4346cb5efa38ab1140e943285",
    "signature": "0xe13db745427314858e2bc884ac748ce3f50bfc1486ad10b18b29d423a540c8c339908556301096217e8cfb9a637e89bf11c7d1327afba757865f704f98a8616a1b",
    "signer": "0x153E4E1cd0C0946FB5Ac891EF0737BC3fc094030",
    "userId": "9297554"
  }
}