{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "790897098",
    "entityType": "User",
    "nonce": "0x8d1e686f5034bd05d4bd3358ea53598c6b05f881767b6896ff0d1529978bdf4f",
    "signature": "0xa893d32d7da29fabffa72ff645fc4b1276adf9d19392bd2196bf1711104a929515c4299c14d50cf98a4b6ad0270134a6d010b91dfa11d7dda59c40a2b0dcf2091c",
    "signer": "0x9c5e7F56Eaa8b6eBFA8F0e7231898e369d2e0b18",
    "userId": "767121958"
  }
}