Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '62db7738e207c9e7259c2b66aa44f7f5bd8ebe57fca05de23efcc74a8119f4ab' 
  AND token = 'DBKAaS2LRnTXD3l37EzDT9yIa6HWArKE5hOE6XUXFq8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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