SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '010f636631c679719d61231581f1eb8ef72f5564fdd54fa39a5942d9a2216902' 
  AND token = 'piAYCIGZkLihg+sVfvYxfg9QrdyF6HJgApyIdgiMwhQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00014

JSON explain

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