{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "350106",
    "entityType": "User",
    "nonce": "0xf8ebc519bf718850cef3e25b5cbdf3ee190738653013f89ed24179319212fcaf",
    "signature": "0xe2f8d0706fb3944d9199e9114cef1817372f5ce038109f2d65da78a64d6964fc76d19374752edc63060d5ee420a3262824be41e9c9ab08fd4d5b640eecc5aeb71c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}