{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xeea2e0c72396b432349773682ac01c1ff1eef08cbebf223c3bd05b6746834a18",
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    "signer": "0x9fFaFAaC12f94f865863D241d458e9B30e930f56",
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}