{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "923028519",
    "entityType": "User",
    "nonce": "0x402118a7840ff80e21830a5bddee617fae6d91bd524605811c5608244a7e656d",
    "signature": "0x64fc850626762e71cf8d255a7622726c9fb87d494c8f267550f2bdf6af51cadd6da26abe1e5afa5303a0d6cdef1d9d0054552f02c1667ecf242c7c7dcecc22e21b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}