{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "937107046",
    "entityType": "User",
    "nonce": "0x294c0a3999fb49750e0a71e25727ceb5473a4583f1508616a23dbe257ffc08ac",
    "signature": "0x67f604e9085556f1c43c5d5ae39538cd66bfd20f3e67f50638da75da26cfecf866a6db7261e6e522572df7eb5cd511acbb28a99c62793354e2065ea6d5552e7a1c",
    "signer": "0xA61Ec758eD62E71769712843066E0D2AF592b23d",
    "userId": "556255982"
  }
}