{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xcd0b7f835167952dc178ed8e2a4d878c4dc402d89e1018b4ac3a7ec7e805c94f",
    "signature": "0x29b36e4cf65da0f6765b3744db022d9a7a4cc0be4f96bbbcea5886ccda8b1484551c74ae03a5e9ce6e4912c82278e10eae2474441ba716444dfe59b49e35162b1b",
    "signer": "0x530e72a1Be52b3D1404CB4Ab0e7a1B7239328bcd",
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}