Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '27374d005e72236ebde26dcedb8097ce0e743e8bf523f661a817e039a36a2326' 
  AND token = 'tWCKPBUIUvWCrccKl7C3fNOR3VDtOSUDd8UNPjksX0s=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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