Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f093b7efe94af575c314e441b65e5b22fb1d96bfc30e0a3c9ebc15a5cd0a6af1' 
  AND token = 'vK25DhaySvRIKPn/S68Q17IbcgjtvBZu4WcMDmFKPGg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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