{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "323887682",
    "entityType": "User",
    "nonce": "0x43affd522fd4ff65eb17830d2eaf971b760e1fc6a5cf5b496f395412a8221f6c",
    "signature": "0x93363c0b0ee1c9154e402afc2f377f73155c34603312b3b0f8b09c5a89770f570c2211b67cb9c10cf03468f015727c253ebf51a1bca6b2e5b553e1fe51ed3d101b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}