{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "987627241",
    "entityType": "User",
    "nonce": "0xe0d0d9463d050f05009198c9c499a7d6c064ccffaee7bb83188dfe41d1f7b468",
    "signature": "0x9522bb3f1f766edd7e39dff2d443335a7fdd2cced86c7e76889d56896d7ab8023f18fa44c4e1de9bc97a20f17207fe6181d1cd9da56163ee23a6c6d1ca37ebb21b",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}