{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "804375140",
    "entityType": "User",
    "nonce": "0x35325262d61831e684ab42cceed54ca9730f3f8a90c7cc1acd123e1e7cc84090",
    "signature": "0xfce5ab697458475346f2a08e3910513710e4020555a01601c2825b57ea9af33a196b5b37ead19e50f841aa194f0d2a6c472d8d30f6d6aa787ab8c2affdec7f701c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}