{
  "manageEntity": {
    "action": "Update",
    "entityId": "834064217",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraiq7kracc2sqlz6hoi45mfvzqu4c5f7fygujiohlcvi7an7nvpuha\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":140294347}]}}}",
    "nonce": "0xe158c87dd7935bbd68fd6ea225761e437ddf7f649deaa196560cbe2a8dfaa182",
    "signature": "0xb47217f926bf0680f3a02ba02e37ab0b68660d2b20442a13cef05a05e29230721b8669982008f1b0f04c1754338d79be7154891af88406ea54430017c7e7f08c1b",
    "signer": "0xe548b7816cF9E48d0821429d61e13eed9F71394B",
    "userId": "834064217"
  }
}