{
  "manageEntity": {
    "action": "Update",
    "entityId": "958967279",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera74ahsugs6et52xgh7pcxfmgkvegvr5freloekcxsgovntf6gmb2q\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1190834438},{\"type\":\"playlist\",\"playlist_id\":1810257541}]}}}",
    "nonce": "0x6055a427c1e616288c0f7cc6f4b8735abfba859b2b75e81ed36fcd2b60bd577c",
    "signature": "0xd65e0c9e5359697a5f8e690bf4099e8e9cabc1ee9287b0b853937ee50e8c59723f18901114af2ba9062614a56b888e7ed8c6d2caad9606195eafdf086a0d28f41b",
    "signer": "0x6A72813Fa8AA17b1147243997B76e8191475e74a",
    "userId": "958967279"
  }
}