{
  "manageEntity": {
    "action": "Update",
    "entityId": "655790469",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraj7jpkzmu2h2llyuozoscokf7s36gqc6t54zthkluwf6akunczx2a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":1848153756},{\"type\":\"playlist\",\"playlist_id\":1381585353},{\"type\":\"playlist\",\"playlist_id\":747676818},{\"type\":\"playlist\",\"playlist_id\":504519602}]}}}",
    "nonce": "0x058be3a45b74d880345eee76cbf620f95041a8fe0ab720c6660ff6a12e6540dd",
    "signature": "0x628ffc97dc1709453064f010aec71ef9462f4d80d29513b8f10303b21cc2be391542c3c25fc960bd345de3b37de32c3431d0af7d3a6a6ce298a9ebdc65f7deb21b",
    "signer": "0x2fff7071097d912DEaB17B33e448D7280cEe0723",
    "userId": "655790469"
  }
}