{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xb57f2699410dcba488ed1ad600dc8899820d0f077f240f4902a77babd2227407",
    "signature": "0xa6fe3139046050247ff6e0f0b8f62a3040f60b70fdf821da6b8b5211e44a97897c28d2fa0fc4bf2d0cc3fa702a775d8201de80910f39540c48a32f837413f91b1c",
    "signer": "0x85d4cd24EBe4d4E3e476938d816c6EEFD87C6C1B",
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  }
}