{
  "manageEntity": {
    "action": "Update",
    "entityId": "369145976",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieray3i2meblcbbul3cis32vo7hadq36zuxe6kd2d43rmmnjnrkhsw7a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":273196207}]}}}",
    "nonce": "0x60cd656ea6575dc99474b5ec482274a5dd6a1b8f1ba1ce82e17d8bf7b3588a02",
    "signature": "0x37e9d767589c882f44cacd82726c85443c707dd4062752f0ec7a12cdbf282ba94741951b9b76cf37540f4a9e3eb55ae3530e078c47168c33ff1a179e2d4a97f61c",
    "signer": "0xb904172F0B95C0ab98D43c7046A45F21C1a46b0b",
    "userId": "369145976"
  }
}