Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd76eb69eb1798ebd30c6d467f13dd09e8bad5e0467e83fc3ceab2794f52c1265' 
  AND token = 'JT7rQ3WnJdPKeQIIHzqJAwTijay/qHOcpD4k1+pkDU0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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