{
"manageEntity": {
"action": "Save",
"entityId": "849825660",
"entityType": "Playlist",
"metadata": "{\"is_save_of_repost\":false}",
"nonce": "0x300016770ecf5fd1fe3d6aa8b6e363d38b2464ba924a222726fe754562bd89ae",
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"signer": "0xd708949D0521A856Ca6eB44B4112bAEE59741ADD",
"userId": "490478463"
}
}