{
  "manageEntity": {
    "action": "Create",
    "entityId": "1303105478",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1303105478,\"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": "0x67a2d198264ddd5bd43a8151da217e544177de14f7a4f5c6f6c6e6c5d6f4635b",
    "signature": "0x3b8f7eea8a90a849e9769840140ecaa4c71a1260e9c483445897fd3bd4ba75d82c66bc6fd5f0b51e1be7736732a32ca6642c2df4f507e5b83ed2ad257a56e9c01b",
    "signer": "0xA2C7cDCb14C64ae30bb5921F74A980F146388AC1",
    "userId": "196831756"
  }
}