{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "450737",
    "entityType": "User",
    "nonce": "0x5c95f3bb22863d889803b38185287dc896ac952254150e46adf4f2b83098ba52",
    "signature": "0xc822bf785f9fab56fbe7a1672085d382ad65b936c2c3b4dac08aadec19d2a6907da0bbdcbf91ab39284d797fbfb72b8d10da9bd3b8815f875363c56f868639b11b",
    "signer": "0x71e8a1008312b57F0b32643d96c39a4bb8104F9B",
    "userId": "201249681"
  }
}