{
  "manageEntity": {
    "action": "Create",
    "entityId": "899636399",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":899636399,\"description\":\"\",\"playlist_name\":\"New Playlist\",\"is_private\":true,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":false,\"playlist_contents\":[]}}",
    "nonce": "0x08668a38739bf5928ad227738dde901268d6b439a786db9ef86f42e4a9c194b8",
    "signature": "0x1b1259a3703aadda72fccc588bf3cc1d562742a30753ae9b43503c0e1441e66f52ff05c4a40eb5153794c9ad5d2c0074b5cf2815ff1e4c46ccaa6b08e1a4c86a1c",
    "signer": "0xaf496827546F9662eC424Ac93F0f119E5219d62d",
    "userId": "726502507"
  }
}