{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "693735602",
    "entityType": "User",
    "nonce": "0x962d883241fd9530be48a743f8d3cf75209c4be531a77b5f5003c0c594fbfe98",
    "signature": "0x5b37c520bbb44da0dfddb38a2fb510043df65cb169bb6b9483b3261fe4ac0da847934a977fd3e2e58ebdbadb9b0f58b0a3f7e42c9be04d04e983d49385449dc51c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}