{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54120",
    "entityType": "User",
    "nonce": "0x3aee8e94c4ad56258e5b187a427459c42b6b3e6a63cc2508a0c557c22cf5d817",
    "signature": "0xaca8456c9f12094720104d2f17c228c509e4e226f76c039cf985fffd285f6af5740c11e43b5af935cdb7200192315bc3d9b05a2da0cd1e141ad2b53b7cabf59c1b",
    "signer": "0xb7C7a8D9d12EBd1Cd438cB065E97280E6D7e912A",
    "userId": "984691913"
  }
}