{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "48830",
    "entityType": "User",
    "nonce": "0xfab35bcdc3a98f1d63b1112d272cef75570663aa0506f5f080ffa64bd615f829",
    "signature": "0xcf2bf81b1bcb21a5e0a742a50b6e837103e2fb41db85c2614bc08404167c32a420b652dfcedf60676436b59f7ccb4260fabdb45216558631f901b9c9c83bdc9c1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}