{
  "manageEntity": {
    "action": "Update",
    "entityId": "563998093",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc8e63171c15b573cfe7c3af0b420107a68deb35a83357c5c5e2716896f842d2b",
    "signature": "0xfe20086c8216f716b454132ea54c6098000c604b753e40cef07dd6a4df1f23030e42b08506ac195291fc380777ec9a687c5f8f8cfbc0bd4573873a64660e0f741b",
    "signer": "0xc11D28404f39623f2A0d9D9eC6D9E5e4C8e06fEb",
    "userId": "563998093"
  }
}