{
"manageEntity": {
"action": "Save",
"entityId": "4281",
"entityType": "Playlist",
"metadata": "{\"is_save_of_repost\":false}",
"nonce": "0x16b84607ac61db939c534565aacab72bf6a52991f62757622e10de88ae646204",
"signature": "0x184a068a7fa8ce34f8f312893099a570d1c883dc309006c26740b80045289ed83a21920e4a02a1d1f03a21a605de03e8f35a1e2cbfa03b8def5632b307f146f01c",
"signer": "0xeA573A0dfaEaF2b268ffB97059EB67e866BBFA9d",
"userId": "705358589"
}
}