{
  "manageEntity": {
    "action": "Update",
    "entityId": "620921422",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierakab7cxwtql7mpmvtfspv3rn6rdnic3tsysemach5z46n56tltxqq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1712365028},{\"type\":\"playlist\",\"playlist_id\":145520179},{\"type\":\"playlist\",\"playlist_id\":1595469811},{\"type\":\"playlist\",\"playlist_id\":1456997187},{\"type\":\"playlist\",\"playlist_id\":1819900399},{\"type\":\"playlist\",\"playlist_id\":1694675948},{\"type\":\"playlist\",\"playlist_id\":1526877642}]}}}",
    "nonce": "0x76b912ea7ee333956d5c62ca1c32df686f70b26053e4198be4be7c4324a3b94a",
    "signature": "0xd0780c2f5ba464e6c68f0683ab2955bdceba929bbeef09ddb247b83b55682abe2557e55b8c33bebec76f137cd3c11830ce50e9bc210c0803f06ba325c78ba6d11b",
    "signer": "0xdfcc4d06D5B8A0AF1AF77B1Ec434e5F50B625a75",
    "userId": "620921422"
  }
}