{
"manageEntity": {
"action": "Save",
"entityId": "4281",
"entityType": "Playlist",
"metadata": "{\"is_save_of_repost\":false}",
"nonce": "0xaf447848da890c798d2092bfaace8f5795bdb8c74ade8103645383d022161044",
"signature": "0xf7f25b59c7b499ed317e82b55fd8bde811636e25ec3a2504e3bb163d74de19cd3dd0b4138751bb7443ab25f2c55be73596bac5eecbcc9bc6990761520d2285ee1c",
"signer": "0x58f38B9832d174687238aC84A5a4538D2F5Ccc71",
"userId": "505391791"
}
}