{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x80cc8f855028b02afbca9bb25cac3779d546bcf0d137531c8dba3f95668d0856",
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    "signer": "0xfbbb1226182dF79443F21FC56e05AB65B03d7B5A",
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}