{
  "manageEntity": {
    "action": "Update",
    "entityId": "1415762",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierap7kmqfhps5py52nohvngyedqaff5mbtt4l5wsajsdxkizsybupja\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1087030952},{\"type\":\"playlist\",\"playlist_id\":198813583},{\"type\":\"playlist\",\"playlist_id\":792753297},{\"type\":\"playlist\",\"playlist_id\":1214894220},{\"type\":\"playlist\",\"playlist_id\":1682099105},{\"type\":\"playlist\",\"playlist_id\":142363535},{\"type\":\"playlist\",\"playlist_id\":509823680}]}}}",
    "nonce": "0x53bc56bc43181ee5631a012ee27df8175214b488c8d518c804cbdbdf7e26fd20",
    "signature": "0xa25325e5a60b5d825cf6f2654ab37daaf6816a84e4be16891773f4b211a7480702776b397bd2138d0a101000bf934d5a4fb8dbe5ac01f3df958f66435c6d83e71c",
    "signer": "0x803cAa47D9F525D1180159ddCAC9575061b200B3",
    "userId": "1415762"
  }
}