Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '888c7cbe58ceecf4f0710acab5cd3b283be3f11d73f98ada3d69a749a051133d' 
  AND token = 'tY3ksCcfBG9kr1m2z6W5cCo8MbTBcjUcRVD/L3fjH1A=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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