Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'b1b9f40684645b6d984fa51e5357ddf0818f37b61a87e7f184d2995b5c6069d4' 
  AND token = 'rVYDYNc2xhbq7t0U3vgVlOVAlMm4ocCQuuvY7Czn3xI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00057

JSON explain

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