Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '096f3c8008a3b34ea9bc18770de531f5967d6008a55e38920a5757932c8240ee' 
  AND token = 'KK7+KA12M0q95Qy9luP8RKQ6H+fTPBXwRC2HZDAHjZY=' 
  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"
    }
  }
}