{
  "manageEntity": {
    "action": "Update",
    "entityId": "706102855",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x4b879d7383709c4c067607d1e5b15f6e3aba358bc4877302fca3e83126fb549a",
    "signature": "0x4c3f8119f3337c6acc7d8e5e137bec2bab88e00d3d4582dcad2d76e225d5b5890777038a66a514936ffbe0237d9c600f1398b006971497a605e4b51e08a904371c",
    "signer": "0x715cFFF87b8c59a96a0Ac120C6865d50486dB9F9",
    "userId": "706102855"
  }
}