{
  "manageEntity": {
    "action": "Update",
    "entityId": "1346151055",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"Premium Songs \",\"is_private\":true,\"playlist_image_sizes_multihash\":\"\",\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":false,\"playlist_contents\":[]}}",
    "nonce": "0x40bfd3f46831e208915111e2547151315c358edb47b3b7cac985af9a3d1fac73",
    "signature": "0xed48633035379b6105c41dba6989d629de4248def4af0caa55632bc7212d844443cff4a73841bc25eb8e8307e6be34b998c421dbcfc00d86cdcd10293cf89f031c",
    "signer": "0x5C3ED23667FcFdce6d7D7E645C5F96878Da6c74A",
    "userId": "110794540"
  }
}