{
  "manageEntity": {
    "action": "Update",
    "entityId": "569079080",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9e0f1370a6f1a6c2fbd975d7636b055cf665533f62456eaaa647992cf6f16003",
    "signature": "0x02cc4d7994f2586dfff61af3820fdd100bfcb980f3f0f3c1093474fd0f5a588a0529b1263410702a165a9e5dcc6f456a36144050efd9ea351583ca8c1cb592881b",
    "signer": "0xfcBFD9cc6eAD98a08602C0cDa25b09416f4C367a",
    "userId": "569079080"
  }
}