{
  "manageEntity": {
    "action": "Update",
    "entityId": "377497",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierapsv2imybj2d3zyjihikewztjosdpks6k4hfkbh5syag7oetw6jca\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":129274},{\"type\":\"playlist\",\"playlist_id\":119680},{\"type\":\"playlist\",\"playlist_id\":37384},{\"type\":\"playlist\",\"playlist_id\":121532},{\"type\":\"playlist\",\"playlist_id\":1684612631}]}}}",
    "nonce": "0x1d5ab5021c5d34363ac8effbbb128e851c87f91272c3be4fda2465b8bd0ea7bd",
    "signature": "0xcce8df96e0a949d9b14ee4220f784eb9fd5d7ea768ea2b6ea5f2787140314a0a2dfebec3db4878e3b6c04b8bba6a3b2bdf9b23af68bf33e83a03c1ccfe9f33661b",
    "signer": "0x61319b6F24aFC24C66B022635d8Aa03Fb93e4107",
    "userId": "377497"
  }
}