{
  "manageEntity": {
    "action": "Update",
    "entityId": "489026160",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7nxthtanbeg6agp6q6otocaxkey5agbhiw3oa3pwnkfsnzqqlotq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":981899711},{\"type\":\"playlist\",\"playlist_id\":954706252},{\"type\":\"playlist\",\"playlist_id\":16773419}]}}}",
    "nonce": "0x7d495c08e816bd29fd4787870ff7176e62a9177865ecfcc67eb3d9e38402d0b6",
    "signature": "0xb9c1ebf51973857383137b67827e84f5b0c6d8064a336c1f326ffdb3a13d74c46c3598c470ff6104b0d4beaf8c9331563a8c21685a3efbd9720385664b3abe371b",
    "signer": "0x5fa60F185681545769de01098bB8F29cfbaE3cF0",
    "userId": "489026160"
  }
}