{
  "manageEntity": {
    "action": "Update",
    "entityId": "1135450838",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"Hip Hop/Rap\",\"is_private\":false,\"playlist_image_sizes_multihash\":\"baeaaaiqseanmr7aeqpz2ue4r7p65cgnrwyknjuj2edflsia4nf6whd4q3nm7e\",\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":false,\"playlist_contents\":[{\"timestamp\":1776022420,\"metadata_timestamp\":1776022420,\"track_id\":914284915}]}}",
    "nonce": "0x46a2f030332706872610d5eedf7325dee1489db4cf8663d71913355b99162f84",
    "signature": "0x71e2aafab670fa84a5b4df2bd10daacdd460de3dcbc2844b5fa9909bd8c0ef1e464ec5e2b0dd10bec41d3fa7ec1f5f14e3879e39330ca926becf8b00c8b82a491c",
    "signer": "0x3DdfB99173Ed7ff3A083C9C589582B230d37906E",
    "userId": "192527938"
  }
}