{
  "manageEntity": {
    "action": "Create",
    "entityId": "15712630",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":15712630,\"description\":\"\",\"playlist_name\":\"underground \",\"is_private\":false,\"playlist_image_sizes_multihash\":\"baeaaaiqsebqrghnq6vbvim6mljmcdqiyubmuysmm5rqlcdcbax2hamagtgmlo\",\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":false,\"playlist_contents\":[]}}",
    "nonce": "0xa7331f25a02932ce77458628b2c4865862c9464281b2f8d76d780fc58b4a5dc7",
    "signature": "0x507c0a056863332543aa0ee84cd733c8c162e3ac1c02f952d3c8b5a02cda452528754853b4431862c5f96ae908126d5ae55a7e38231a53f14fcd09ec9531496a1c",
    "signer": "0x6C2a317c3Ef10f533c1987a4DEe09F107B0076b2",
    "userId": "604345463"
  }
}