{
  "manageEntity": {
    "action": "Update",
    "entityId": "873620060",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera4s2usjrbxcxo2gswbshuauos3a2dc7eyejoorsntmbouuqgmhlxa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1601978251},{\"type\":\"playlist\",\"playlist_id\":1283928218},{\"type\":\"playlist\",\"playlist_id\":225459156},{\"type\":\"playlist\",\"playlist_id\":803211282}]}}}",
    "nonce": "0xdd4a579b41b217446a5a53642b94ac314ec62781aa020d1c8beff4153b0f022d",
    "signature": "0xf0e37882d2263dcc13f817f03db4f1856c65d10cbd4adc9cf1f95dce6f38ba7c0e350814899f0a220915fd44d56ca49ad4b9636cced160872eeac1de6612914c1c",
    "signer": "0x1F40d6774264ee06e8e4c0FBC2220de42404015E",
    "userId": "873620060"
  }
}