{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xd30a87f385d85b315bf6a1c0039fecfb5bf4e40bf1ab7267317a9dfd4849cf9e",
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    "signer": "0xcDcb003F64FFEa1d64e5FEc86AE1BbefE53f95c1",
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  }
}