{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74523",
    "entityType": "User",
    "nonce": "0x919e827a32b00ee0c6364584039624cec6b8e06c97e854434abbce6c409e015d",
    "signature": "0xd80ecf1304f68976cfd2e47b6ea6854f4633b4d80212a1047c8f9cfa1f5a066678fe9da310c80e1dbd76cda911e3295a58846a093214931f404aa353d0c7930f1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}