{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4055991ff4ae202b89cf0f170a262a43c6cee4bec50cc5041e5a8035a729fd5d",
    "signature": "0x6c8ad747352b31ea8f2b9c92daca6772f323c43773913275108c2b50e8dd90743cfc4039ddfa07415d28764d5cd923c5c49971050b737a5abb3350f5e53eb8851c",
    "signer": "0x3DD960Ec163EE24687943075a3363B65E0B4F7A7",
    "userId": "144666761"
  }
}