{
  "manageEntity": {
    "action": "Update",
    "entityId": "579726392",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraz3ncuo45ahptsunt5nnlrbesmzf73xna6byzxugslegnk3cx6u6a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":147488032},{\"type\":\"playlist\",\"playlist_id\":305796788},{\"type\":\"playlist\",\"playlist_id\":974101746},{\"type\":\"playlist\",\"playlist_id\":1101270933},{\"type\":\"playlist\",\"playlist_id\":477711630}]}}}",
    "nonce": "0x9a1ea10b262d7e522e6db31571d611a78b74c441d5ff2aeb69e0d7d419c57fea",
    "signature": "0x987f1ee5d67137cca3d5dc025fa6cc09c0809efae4777926759d11741c3d26474508c521f2d2840fc88cb8143f946422866140840ec57d893be09e1e5fe844af1b",
    "signer": "0x9D360ECE27645E249fbb45fC03AeF953A81031Dc",
    "userId": "579726392"
  }
}