{
  "manageEntity": {
    "action": "Save",
    "entityId": "151569099",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xa015ea928003127f42d9ea8d44c271cf05e40b6452979d751eef178ec07d8409",
    "signature": "0x34f576f8eeb1436ca9a3c49cfd476cfed4070626504ff60cd2b01fb2bdecd0a61fef7210a30beeed328c6024d73997749f9ca3998b4ca29ab22134bfa2a55a1e1b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}