{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "276623789",
    "entityType": "User",
    "nonce": "0xa3ff08aeb044097271eae8c360e9c6db2c9ef38bc83ceaac9a78bb1baff4f9c5",
    "signature": "0x40975748e38ba8e7d372aa58949f9fd6432cb6b4ab1bf12d5556ae28237855a85e361f97c9e7624b306bdec193612e5f731e2ec1194eea1aae18cae5225891aa1b",
    "signer": "0x117D7ddFA44944bDb0558af2DB49969bDF21a0a3",
    "userId": "118335818"
  }
}