Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '008c1844fb82a92ca2b241d163d63b7f163cbc20f12a7bc664fb09690790814a' 
  AND token = 'dqnety+SSYbAY4Zq4X1ioMo42NcZ5SYU0d+/9+gkYVs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00014

JSON explain

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