{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x8ead73b544c95cdb60466140cbefa9223e4e603d3b21fe477be73d9a1903c094",
    "signature": "0xb61b720e6ff8923f1b0b23400265e5d0dadd62bfb4f12558998b7cfba7cc3ebb257e6703793c1dfb6f91df5d473653c2c5a66fdc1684fe8e1ea9443de06522df1b",
    "signer": "0x9e6Bc923c3B1A420BDAF7b6dd8E4a6Bc51f0DfFC",
    "userId": "918602404"
  }
}