{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe0729ddd12ac075490c1a4d2cf69d194f91fc11322a90b4d341c0de559cfb2cd",
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    "signer": "0x4775139b470b668e3674eFBc19f585516aFa80e4",
    "userId": "542041690"
  }
}