{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "105821",
    "entityType": "User",
    "nonce": "0x8fae93bdd6c1452f9971c3d7610ff6150da8c1938679ab660a75871e30e3576d",
    "signature": "0xf4f7c6fc9f1cca472410896068bf82dc6d65a861c6aea0652fae3257dce1770a0d5349cf479155c01e3fdd65b4561f7da92f6d36aa29d2daca6843fe382976321c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}