{
  "manageEntity": {
    "action": "Update",
    "entityId": "839233202",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraxewksbeb6k63emyj3cxpefzgwsvu2y4rhjr4vhugueqdhgkj6wta\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":959510088},{\"type\":\"playlist\",\"playlist_id\":329800787},{\"type\":\"playlist\",\"playlist_id\":2004639148}]}}}",
    "nonce": "0xd40ac2206bc3f53e51f14d33d0ef32f34b8b76c7becd1d7c053db4aa4949ef5e",
    "signature": "0x2bcb825aed88f018098acd75b6b1057f477fe9a1f17bc5817bc62d67472116682aae5df624ec8d81e1a88407b9205000e15ebc1074b176bf22cbd24ebbb7e6ce1c",
    "signer": "0x648B4387a313b9F9b1b70bcf05cB555C22F27B78",
    "userId": "839233202"
  }
}