Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ef036f3f5ef4254fef94cdba0e74d808d73ed37d1e7aebbf4f2f12de97d57679' 
  AND token = 'Yax7KS5yhtI1oUxNRL3pxSsJQul7ihpglAp1MYRvdts=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00013

JSON explain

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