{
  "manageEntity": {
    "action": "Update",
    "entityId": "469177237",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x464b52c426bc2b634a544d817960f91148e79d6927b91cb5d1796675549771f4",
    "signature": "0x972a37b687b3a0084923be914f9ed8b3ca683ef2fc213c7132e2b6c99a74163c2a1083137d0ddbc0babdfe7bc8de792dca5f59281cf3350d32e0f64783b4bfa91b",
    "signer": "0x0F54f613C3B9212A775fA86Eda9a4bcF5993Ee00",
    "userId": "469177237"
  }
}