{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x9cfb5e8e5b8d9eea05d4c3535b2320563a2c11242d361b0e5eab7daab0f15db7",
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    "signer": "0x995Ca8f2d3956487967aCfd7EA849313C448c3a8",
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  }
}