{
  "manageEntity": {
    "action": "Save",
    "entityId": "1183401105",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x035cd9448893764d0fca214974a98b5501dadb2b1b8b3c0b80808dd87e80f462",
    "signature": "0x08b8262a507a4d438c1a4fb723b817e8737bbc6863bea2c3bdc428ccdbed7b2259328c5fd4e7dc7379fd77311387b4fa3e3be0031e9be02ec1c08bdd041a13f21c",
    "signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
    "userId": "35918963"
  }
}