{
"manageEntity": {
"action": "Save",
"entityId": "4281",
"entityType": "Playlist",
"metadata": "{\"is_save_of_repost\":false}",
"nonce": "0x1fd5960ed5f93f086b6875b1e3aea307da65602773fd43d7e310014804c566f9",
"signature": "0xc41ed9760554746d38c084bd56bbebdcb805b487cac1ed7524703b13fe76fdf527e449023c738a04cac310af6a0d6e712150353733cbff638653660e2fb58acc1b",
"signer": "0xB83d41e0608769A4E6de67fd6E42DC5386b98eae",
"userId": "871486785"
}
}