{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "601282125",
    "entityType": "User",
    "nonce": "0x5c935b6d107312e0f25b5a2572b6c9cf9547a0131138b00dcddc1bd1e7053cdb",
    "signature": "0x605b688646f2e1397f18202202e35ef024d4ea5acad898a9fd5cde3859b517b329d2e273b8be02e5a7ded0679462c2143a7295ce90ddf0c6594841cb70564d821b",
    "signer": "0x1ABf6DD41fe1E6b1C2d3A69859a25C92caa31b32",
    "userId": "17689"
  }
}