{
  "manageEntity": {
    "action": "Update",
    "entityId": "368251394",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera4s5s747h6v6wncqcm3zd2li4o5wpnnmpevn566pyuyhci6biw65a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1934375503},{\"type\":\"playlist\",\"playlist_id\":1701063367},{\"type\":\"playlist\",\"playlist_id\":1044962261}]}}}",
    "nonce": "0xb8f15a57bb61e53fdcf38bf41bf310b708ca206ed89d839084e0f210cc07d890",
    "signature": "0x883f44224a4db726833904b1a55571200134285224f2b7c1f001a03bf7f889f225a8db4d89ed147601ed28cc86878773d5c6cc5d2a8a9af63d35f1e1acdfeebe1c",
    "signer": "0xD16DE964b94Db4bDe46DDe6B86F2e9193b7A89dA",
    "userId": "368251394"
  }
}