{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "217600",
    "entityType": "User",
    "nonce": "0x70bd9ad00b4317d4791733f53bcbc4dcdf0bbbcb715883c47b7d8b482eff8da3",
    "signature": "0x9dfbf6b20df2c213b7e717dbc9cfef8ddd60f8db71bdd7f7a4a1c5f10241642d65a96f9d2bd5768a82b4e03356f818794947d394a403e2fc0ae3ae13f66ca4a91c",
    "signer": "0xC75a276D0a36850045510B0483E737bCDd1F5E9b",
    "userId": "588125677"
  }
}