{
  "manageEntity": {
    "action": "Update",
    "entityId": "908882744",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6115e17927098c6fced2595a7c1c91cb7bd303924d9ec571115c8cc13dde193e",
    "signature": "0xd25cbedfb3e80723d235287061960b1e034eec35b3dc152474c928ae9b4bba08048aeca18c5293054696bdf14dae4f252605fff6e5993f8b1a0877986659a67e1b",
    "signer": "0x20f34d7fc3E3727599f595056739b7dc0c9EA571",
    "userId": "908882744"
  }
}