{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xc8d582bb746bc59aabb5f968c249c4c2620afeb76e6ef52bf40b784e9901f2ee",
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    "signer": "0xd03b6a2Fa431A51bC0f887e04f02D65263C78459",
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}