{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44142994",
    "entityType": "User",
    "nonce": "0xa1e5aba056823a050cf04b82d21498d4a7942293b66894de04d45c647398f722",
    "signature": "0x010f308f298975636a652d8498c2af77ef43f657d60b4da6133f8292764d33913b84ae28031c3220c3b56f35c626a23de52a27c2e7a7bec93c4b632ac60627de1b",
    "signer": "0x257c9f4A9563d6A4a2bF3be7Da1738e167fcF295",
    "userId": "301719964"
  }
}