{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xb906bc36299983f66a41104163ebdc8ae4e10458132e457d2fdf342bad00c3ee",
    "signature": "0x422692b6b902aba4b62f69a38f7b59958fe461b2a9f5f76fa8c51b2778e8320141b11435b5ac21b1a195dfa8d0b7a08b3899179e8b2b8712ec8cbbff67ccbdd71c",
    "signer": "0x1A03dB80e576Ab52a1E1852ba81778ae8f8f3f95",
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}