{
  "manageEntity": {
    "action": "Save",
    "entityId": "1595249441",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe7d9e1d55bbf851a80f72731bd63de282cdc7d7376a70f9a3f6a02e3f40424b4",
    "signature": "0x822d3991c8b148184cf36af179b136ed1a1a66ab5d9e5dfd761af2877a51d7fa033438e6da696d65d14737e77efc0d2edcc53943641c901e32fe2e596fae814b1c",
    "signer": "0xAD107a7f1cB5918cCa4fa4556Db5395B94A41710",
    "userId": "928659794"
  }
}