{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "527584605",
    "entityType": "User",
    "nonce": "0x5cabc9751c90224758feeaeeaa2cd165da70a27595852d42e6326ceb12973649",
    "signature": "0x3f8b509c5e8d80d72acde94d49a08be275050e234c19d4359e49e16699b8aca37d1cf2d227e8e0ec9817dde4f1ba87f7c4a1e6ae9a3743958d144120407f31941b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}