{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe3c9cbcf2a8ce34b89d7d39a5f8f75cf8a7b691f2c6cdf360d777955bf9b7f2b",
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    "signer": "0x4859cb73a2827537B204400dA4826114041Ea722",
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}