{
  "manageEntity": {
    "action": "Update",
    "entityId": "958967279",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieranvfj3shet2erp3ur7cll6c6km7s3loopysk4tvq3nj5gcpbrdqgq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1190834438},{\"type\":\"playlist\",\"playlist_id\":1810257541},{\"type\":\"playlist\",\"playlist_id\":764037410}]}}}",
    "nonce": "0x3e9e7cd32805463cf782ccf430c2222243ee15a8bdaa6130c7e2a97f4508276b",
    "signature": "0x99ece075074ba7383f447e2aeb4966c6a5aa43d2589320d6b4de6c70c72dd1567153b8524c2dcf83c694fecc905ceee9fd02f8357dfc47492c803be4a512c78b1b",
    "signer": "0x6A72813Fa8AA17b1147243997B76e8191475e74a",
    "userId": "958967279"
  }
}