{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "277994",
    "entityType": "User",
    "nonce": "0x900f02466da2a8ef5dcf41165897b7e6e56bc10558c69d8a18270338aa5a59aa",
    "signature": "0x10bc0883bd6f198638dcb23cca4f0c23ed96be63c2cabd73d674f19c49453c8440ad3bcf8c41da931656eb08fa725298254594336e0ff0e88bb5fa03005e480f1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}