{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x62415a383edbe709356fac50feab5f5c15e21bb37f088fd5304eaefcb4f72e0e",
    "signature": "0xe003ff86d201ffd0d603ebb4f857bcb09c553579fbbc1789c4d8900b60dfad0d024b7d50df133a924977026007df1adccd80e7af97493497e63447aacec0e9a71c",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}