{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "38335",
    "entityType": "User",
    "nonce": "0x8bd221c82681c4924de0407702eca46477cb356980555a7a0a8f933bd6fc204e",
    "signature": "0x1241283e81cbe7bc98982abca8e69da51ca4be7ebfe348c701650c78efc208246fe375aee625417db346e7ac586bb6e99be5f7a3ec766a3436848f5cbb4991b01c",
    "signer": "0xc876F505cb8a680D38792C141903C53780bc3901",
    "userId": "384345140"
  }
}