{
  "manageEntity": {
    "action": "Update",
    "entityId": "994592146",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x21f7bb42d2f6ecbb6178c1bfbd01f7f724d0eb3549344700e17f1b7d74ea4948",
    "signature": "0x2d75a186acc05a729e899118a95af6b383f23f0bf9dd9a5d899ee2c29c9390b555d88c33c28192613b4e5e1ae5701cef568fae66c450c56e854c3625714b029d1c",
    "signer": "0x67aFdccCCd0147Cb231e9B02eEC575Bbf69D3ec2",
    "userId": "994592146"
  }
}