{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120749",
    "entityType": "User",
    "nonce": "0xc0597e19cc5111488792640b4660f49bc6133151a88cf7838b480bd1c54f4d89",
    "signature": "0x4716300506d539536e5063042b889638bc815d977c33106601a3ee1b7bd9e2c16000e6602b368788b0bb747a36c92ccca88dfb38455a11864a786ae525e50d031c",
    "signer": "0xE9B9EEdDb579478834256Bd35E42d09cfb754b1d",
    "userId": "281227"
  }
}