{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203752",
    "entityType": "User",
    "nonce": "0x8f5a8c1ab5c144c2c25732e6673d35d09e6c9ebc5f9e0cf43791f71c8da652d4",
    "signature": "0x04bde48f344521e206269dfd6ce9df040284841af4a3e6b859cca832fded8a0a003df5d8b32756eb31ef117b49f64436d434d69af132ca3bb8535c336325e2dd1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}