Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '86e7bf5756fdd9706ab965ae373ee0ae75c603293d74e59c215cfc328daa513e' 
  AND token = 'khwRw+LKab+Utw63TCPve0HJ9jDYGCIUhm4D37AZhJk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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