{
  "manageEntity": {
    "action": "Update",
    "entityId": "1640466",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraopdtvsd52iccdrkp2y6jipbfenwizmq46he4klauxk2vydvo7hna\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1746194365},{\"type\":\"playlist\",\"playlist_id\":467531450},{\"type\":\"playlist\",\"playlist_id\":1391989966}]}}}",
    "nonce": "0xe10e377c10b9f5472166a81ff7c6178619d12057d6fa36d948558dce7d4dc0f2",
    "signature": "0xec7c09d19ef8cc07957c7ec146b43f5d230811508e7dca3f976d24a692b76d326620cd8b0dc115b1b7813dd06483e8008dab7f560414ba7d286575b48e30384c1c",
    "signer": "0x635a32c502d056dd6e3f4aC1eb15Fb0d90a88171",
    "userId": "1640466"
  }
}