{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "938519346",
    "entityType": "User",
    "nonce": "0x32a77765637fc0ee67395d6134c11256dee33748028bae86aba65a96469db2ed",
    "signature": "0x416b910c81a25c9c6ab29e7ba01448dc2bb19a7aca9fea255a82ff83f2ad62684a4cbbc1ff196befa19007e90bf2e185fecca9cdfdddf10dc2fa82ce058b1ea41b",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}