Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '057d9895c167da889d45519fec4253a87ea41fb63bd34293bdd883d4b3708d7e' 
  AND token = 'b+YWDew24oVYfSI576TnySzK3YIfjbyveqHfwvpgCz8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00042

JSON explain

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