{
  "manageEntity": {
    "action": "Update",
    "entityId": "6838510",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera54jasjyhthqmb7mobayst2nnjl3bl26blpfl6vx4oj74ulhjoy7a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":46674903},{\"type\":\"playlist\",\"playlist_id\":768401314},{\"type\":\"playlist\",\"playlist_id\":632180508},{\"type\":\"playlist\",\"playlist_id\":476048805}]}}}",
    "nonce": "0x5e3549fae71207b0c506ea97d187c0d75fbad7fab64a627b7a73e641ae288c66",
    "signature": "0x665a26b23cc9a67aebb13d7faa8205401e07b97fc6c488fb02daba42c7886fd67a23ed8f418e0b8e1b6d53723a135346c50380b16dd31f3e16fa77a907499f601b",
    "signer": "0x58Fd15cF8652ad74664BE5E78b4D09ab32Ce73Bd",
    "userId": "6838510"
  }
}