{
  "manageEntity": {
    "action": "Update",
    "entityId": "165820911",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x011acc8f4e7b5f64ee5ffe9dbf27beddcc65d3d59ed157610b2ce384827ba696",
    "signature": "0x4661984b857b04acafe04da31768a8725b0acd6c98ac88d512d458e4176fb0284e8d2596c0d9172219b28b81b88090c53ac17aa5f98685a7bb9c53c4052334d61c",
    "signer": "0x1A8c7008a0006e8B648a5B20cdA68aB417c12935",
    "userId": "165820911"
  }
}