Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5dbdddbbcf1e20df32eaeead75a464912212e7eec21adb86331b046fe9fdaa90' 
  AND token = 'szjMoOVlCe7wZICJHuEg7Wsx9FMlxEM9QMPN66rnZPU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00049

JSON explain

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