{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0x1501b39b3b967378d30e1c2714a169e9eea95d8480bdd10c2a07227683e778bb",
    "signature": "0x1e1674baf9deacaa9e5ad270b9ae999e14da9b12ebd868c632342e127a12a02c1bfe49fa0a4e1293d0ef229252879d1890eb7d584a7eed9028dd17d1965853e91c",
    "signer": "0xB37E6e788b6A39dCDcB53bf8D70077f76F5F5C26",
    "userId": "895209133"
  }
}