{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xd15db7b7b6da1e15a76d3447c6bb3e57c61ce06c5370a7f530c15e8297383104",
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    "signer": "0x6F70A783fF23fE56ea47FC56eA2C0C0BDc4651A4",
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}