{
  "manageEntity": {
    "action": "Update",
    "entityId": "109867509",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierazx2asssmt6yhd76cyfh75lannnkp7knwhxh7mvq4oyspmthenwzq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1680942140},{\"type\":\"playlist\",\"playlist_id\":376236553}]}}}",
    "nonce": "0xe8757001ace7c62c53992deab38b476ccab18856076b49ea7d3b01d1345dc137",
    "signature": "0x22f229964dbe4a7f001a45d1f2c4a8c302037ee3b4703a00b83bfb15154408634adca322736cea33f42ac9da94dee9e44080bbb29eba06b4bea96915ac33b4a71c",
    "signer": "0x5CC64B02265Dcf47361435fD77775D146B493471",
    "userId": "109867509"
  }
}