{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "83091",
    "entityType": "User",
    "nonce": "0xd308fc8e91e7f2f10e467f0338d493b32afd35e22cca692b1c389b7c1001be35",
    "signature": "0x839ba8dc062085fd6ed92db863d1297601f70abcc1b883f221d8f9e5e97478db39e3abf802d660b6235dc58437f8f67babb38f1f106a64843a6d0f01f76e673c1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}