{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "125233",
    "entityType": "User",
    "nonce": "0xca5b13e5808773d23e869cb78abb45a21c1811c0ccaa445beee3d960e02703ac",
    "signature": "0x768cbf4a71d2825690a842798eb6055d0e49dfb14b56c00367de5dd94d608c8058a393c85908d8b7e53af829ad620177151d7e13359a37e573fa2408af3b91561b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}