{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x6ee489f611d5c4b1a6b25c1b4679481f4cc1eba0a281a5051dcc062427727ed5",
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    "signer": "0xd4172DACb313eb72C6Ee29bc685450908f4A1926",
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  }
}