{
  "manageEntity": {
    "action": "Update",
    "entityId": "598837753",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe14b7cfd096b682feeedda53faea04b4cda9048d13b81885a5fc84a5197cf5fc",
    "signature": "0x407e9c3aa09023a1cafae320381340aa281ee32dfd3446a6966014ec895830a22ca6803af57d6fddc35b152b5bcf935129eed58f707a71f418c10af30b1238cd1b",
    "signer": "0x025eC7902537A31aff29fFCC91267044DbE7Ca6b",
    "userId": "598837753"
  }
}