{
  "manageEntity": {
    "action": "Update",
    "entityId": "847497610",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x222899785a78ee76bd318c28e189ba61388bac9ae77601bfcdb69133c9a8238c",
    "signature": "0xdeca59877eecd7c221941212295b843a423e9371e532d02a00b7f5316ea4049b728cfe0b297471cc645d810a94bacf5e8df91c8f4b8e8b708be42a57ee09baca1c",
    "signer": "0x54952826c1896F8D9f5336260a6Dc5066ab1b741",
    "userId": "847497610"
  }
}