{
  "manageEntity": {
    "action": "Update",
    "entityId": "700583162",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xa5e927ea03cd0308cb9fee1451d0d4d9a9175e304c15e0d567a9a3a4e9b8ca6f",
    "signature": "0x3f70ce98b8d94aa373a3d4ac23a12fa897aa91da15f60ceddf3de5bb8d2ea7936fadd75c68cfa93ad5fc636b6351e33ba3baaac14898d37bb07bb6042ecc705a1c",
    "signer": "0x9977437b12B1b9aF6A9B471Dffd438009fEC9345",
    "userId": "700583162"
  }
}