{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "385467596",
    "entityType": "User",
    "nonce": "0x2402b192d24a19bbd5932166196a892d4a345e6316eb04a552cbe56299df16cc",
    "signature": "0xe3193fa2f2615d901f3e717243c48f158cad971c9540909afb20c3438a925cfa3c793ca5cf93a195dfd1f9c4e38e41a2a52143ee86cee6ea302ddec033218b6d1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}