{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xa3ccb1e773ec9724b25e1e67d44fb3dfca75806b3661129c30fb34785edda462",
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    "signer": "0x3066E3A795c995457a6dFdA2866c82734C85b8F6",
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  }
}