{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x70133128ddcb09e81b6dde1936fd8b525974ca0174b88f49aabf5aaa0f5ac3f2",
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    "signer": "0xd65AAde8ABE0D22385Da81304F9b6D5d4cFb5491",
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}