{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0x40e65917c9bf64525cff11942cf39de24277c21531f22d6dac8a7d95b2eca4d0",
    "signature": "0x788ccfabf9004d39a1eda77d339e31e0af3c738477dd2c10f0c66232a757e6351ee558faeb06a68ff36ab1bcdc8cc554194ab17539c6fcc48e46bf6f7354044c1c",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}