Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '069c1cd9b673fcccd9aaab4b2ca218469d2624721156bff356f5ecf72c5139db' 
  AND token = '1Wcl5dh66Y8swWkPUmB7YKLsecXa7NFzRrv/Nz6tIt4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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