{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16411799",
    "entityType": "User",
    "nonce": "0x4ca0e705eb8623f25ede9ee1a1c404bc7613725279116b4587759a006538198d",
    "signature": "0xda8497f03dfaa0055aaa0e18febcb82d5eeb9048afd64d82de7dea46a6d106972a03d49fd4c5349cdc4ade319d1592809ba67bfb5f147657dc2d00fffb03d1cf1b",
    "signer": "0x2CD314789C9583D12b6F54862F9E2cf505880Ad9",
    "userId": "354640"
  }
}