{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x6ed803df0e785791ef6c07122a5f68fcde489d09f4d2953270b77d9983f1603e",
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    "signer": "0x2a438681b9bFB9BD3977e4FE61c8F157884af4AE",
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}