Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '264b534f3d3b8290ad22dc2f7c812e552c9497df0602521d86f573251556b968' 
  AND token = 'B07d4LTnJI48Yu9JN/Vajy8HWlprBOdMSCnQ6QOHzxg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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