{
"manageEntity": {
"action": "Save",
"entityId": "1815334887",
"entityType": "Playlist",
"metadata": "{\"is_save_of_repost\":false}",
"nonce": "0x672a143dac10618c5018301685f6e9a2d1416d80cd5ea50a5b05230126a60af7",
"signature": "0xdfb4a21889bee923b1dbcf28145d93d37068ef715ce866699610f920ab7b04514fc48a690617f20a47793d8b1fbc6fa8a30a6c6edb25406406ce268d3058d54c1b",
"signer": "0x48a006fC89FEf065AAB7A5769519625870833CC6",
"userId": "128172"
}
}