{
  "manageEntity": {
    "action": "Update",
    "entityId": "75981246",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5055601b45360f52581e1da3af16c88d149130c5aeb9d44386bccc1e0781e6a7",
    "signature": "0xc401d9d0d4b124dcee8621f6478ba6c5d3177b75636b6a3db9deffcc1b72c7c36c24a7ec249dd85d53dd68352b4927700711f91ef5fd64e1dcd1f346772868401c",
    "signer": "0x66CeD225Dd69214A2b232d057655E2562C502B39",
    "userId": "75981246"
  }
}