Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '32cbbb7d33ee30d85cfff449186067a7b735e7f75adb3bd500d8c855d6a6b516' 
  AND token = 'RdRMDEA84Obt9G6EwyjgtPzJFu0Q8/l6mdaglFuKrM8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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