{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54545",
    "entityType": "User",
    "nonce": "0x5a557d0f9c3bd12474d15734ef73ae8a682615bf4a8464f2d9c188602ea0aba4",
    "signature": "0x5befc72ae0d54a4ca135485aa3ad39c12ce58c00640991d797442273bed8c1dc4d0dc9294046da58594dba61482169c3ff5f4d909de2dc6c8dffd24b09335b051b",
    "signer": "0xaF260D56498a2d61b204aBc5CAdCbEc98465d11b",
    "userId": "219894195"
  }
}