{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77604",
    "entityType": "User",
    "nonce": "0xc3f4abcc52fdc7bbcd3eb6e56f1ed00e0ba633917869fb3072e2e9b9bfbc6a6e",
    "signature": "0x93a6863b05cfbc9afed642d77955ca39d7ed43956678c83889fc12061233f25403cee57056000efeb8f9542fbace73d86293bb79dd354f686a2af5fe8dc639e41c",
    "signer": "0x5Db8817A854307B6DC43bAC648d095ab03A71F75",
    "userId": "458682431"
  }
}