{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "344799",
    "entityType": "User",
    "nonce": "0xbeade350c8a74d341d2a3b13a3b3d72f5f632afe9aac61f6c1e56acbdde4eda7",
    "signature": "0xd5526c11a7efc6417a8948c21055cbbd86208f36e7394994e1f69aff8a91112468fb1cac0ee5f7787433abef9a698ff04a3033429a5fbd2a51ed2f21b5e2a5c81c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}