Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '073ee05c754aa8f3c7247e70de0dbd251bd8697389b40460acb51ea8b3db6a88' 
  AND token = 'MLMW8xAy12PlOFHI7cr1CS5I8kK4KJQZ2mZY+QRa5D0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}