{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa228ea65263bf8b687b877cbb92d24a3c197df3584858e71b8321289ac400d67",
    "signature": "0x75163bd8aa212f3138312af3689270db8adb8fb8c37f9e1f384aba583f2e7b6119a092124fa6b25ec8ba96d0b353469889e1b652102079409e5bb254ffdcb9e91b",
    "signer": "0xc24455577ec995DED9713977dAB2Fd68e92Ea8A8",
    "userId": "456815217"
  }
}