{
"manageEntity": {
"action": "Save",
"entityId": "4281",
"entityType": "Playlist",
"metadata": "{\"is_save_of_repost\":false}",
"nonce": "0xea7dc8ec836e5ed2dc51580c41da9d2c7ec1cf3e573a36b3fc329db4eb8165fa",
"signature": "0xd1659ee9e7c59d5275dc652016f1962bdd21198666ce5fae33d41db4baa25f9800240a0cfd698914cf50a8fbc897574a3b4f002c01ab14052bca1f18ac0d3d9d1b",
"signer": "0x568426a5D555ADe94657d547B2Df4a4dc1f0C014",
"userId": "71569007"
}
}