{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "776994971",
    "entityType": "User",
    "nonce": "0xbda7e84be632ed39b83e3a44875e7ca7fc743cd36c5a68bd90debe1d7693cd1e",
    "signature": "0xc85e4e0a53d482cf7df2d6d3dc8950c23f940b4cd832ff63a163e1b35f84adf125a6c5b7b8b744cb92fd0dfc41b45cb17c00b281abeb15c4ecbeaf99520cc9bb1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}