Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ea3067ed3f6ea17b93f28840a026d818426ebe20db0f2d9020494aa20633f0e7' 
  AND token = 'T2NEeK89pMrnAGQsA3AxqU0bLMRPxpu8Ty6zcllUGNM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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