{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "675830993",
    "entityType": "User",
    "nonce": "0x4726190877328d6ac7ea0969471ce572543a86a636648f98b3cec65e759c92d0",
    "signature": "0x25d5ec71ffd7a8de074cd4cb48e777efd39b039577a47672cee31288d31a8f5a522d13938b6d3b8d0172d5ce10863481053c72eb19ca7fabcbc99d914bb7e6f81c",
    "signer": "0x375963f281CEdF4D9D180496F80A256D574daBa2",
    "userId": "981824750"
  }
}