{
  "manageEntity": {
    "action": "Update",
    "entityId": "807703067",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8099b63998eb8652fe96add2ccb97692115df8d999b8fc8dcd3411198254c417",
    "signature": "0xd13b52c9a7c65972d368d329013e983d55a12de368af459f3526be7df69c268a7b29816e28c6d1986dc9abcd46f3f5b4070b3593fe4da9ba5c72ceb591fb9e121b",
    "signer": "0xEC1f468C1B4c4D01530f7262f5bb2780a1BBa55F",
    "userId": "807703067"
  }
}