{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x67fbd876e12181ace5f323306f7c1298c775bae72b5fb35970e8dedb5e8426a5",
    "signature": "0x5dffd1347cdfcca01be1ab4b8ca57f0a0ea2bf267f4798858b3a83fa8857511d72c713c094fc75206b2081d3318e3f444590a08c2a3a645089a636c78159552a1b",
    "signer": "0x82eFf9A32967E2a0ce4c382e14Df3F8bc405563A",
    "userId": "726451834"
  }
}