{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "27915",
    "entityType": "User",
    "nonce": "0x6d271eb7b4401962692063f248e0a0c8c7a5a5c6867ea8928fc9b8080ca123a6",
    "signature": "0xf48b028d5a24a97b1de010150d72d7a537e2b89a79684d3e3c1b399e8b75f5e45156fc40ef75626f0a548a3c4b04226ad74a5569be64e4c035ad5d7c45e9e76e1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}