Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a679b1c8111601f5c8aab219e9d4dfae61fdf15e46444fda3fac217dc26d4b82' 
  AND token = 'uLbhnS0OgYGJskGim1Q1kTo964zOCiJk2xxu/mCB9nQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

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