{
  "manageEntity": {
    "action": "Update",
    "entityId": "357321533",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa0bfbebaa62c3737bdb15cc87396127983dfec15aafe2e2796150d39cd5bd55d",
    "signature": "0xa0e09725c5bf5dd2167e2ac05846119d104de85c8d76007ba383157276bfe9046a0ec0143499a87f15b89e163f6c904755c2130adf7bb8629d10fe113dc015e71b",
    "signer": "0xCAB94B72D8A17f3Fb81B21c9997F8b79E5e7BA73",
    "userId": "357321533"
  }
}