{
  "manageEntity": {
    "action": "Update",
    "entityId": "179923362",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5647c7bd217d3fe5530763f17fea678aa52d3c0e3234f199bd7d7d20870631e8",
    "signature": "0xfaf8ccdb1fdc93b50a8da92b7e94acc0b13520ea583e4eafd57f56b57468fdf02da9815f3584841200ebbf84f88398788328590857470c4f2c8ce20d6baf1ec11b",
    "signer": "0x43208F712e4C966c682c25Fde9F13346FE06522D",
    "userId": "179923362"
  }
}