Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'bfdf20be08d68c4923e5ea7d37af7034632016b6d04d3dc2beb5da7c68847c05' 
  AND token = 'zX3ogSjLBcLGai36Jb7mrJ7n3YbYYB37mjf8qUt5nSU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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