Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '32b492b365de8cb1cc7dbf5c36369dc0df37bdd01559807f73710c3de5329eb3' 
  AND token = 'ELDtBtX3rNKtTuw0EHZOIIEfRh/JOipCUSTqNj6hk/8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}