{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "31849",
    "entityType": "User",
    "nonce": "0xd8490860c4f18c3bb870635f14d7975bf7ab971b20cfe90c03db585b8ad7663b",
    "signature": "0xe2a2374b2a1c8db404c44967ad1ff45b58f1de617b9c0054429840024659d5964152227ddc9e5eb67996edf0f8d7a93d7a1eab6ea4fd25f163cc7632c803998e1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}