Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0732b513cb95cb1ddbc98b678ef5bf20a9b199036783c7a4121fc3824176c1e9' 
  AND token = 'uOk1wFVT1G0ky6JlvJHO20RMY536GTyBT90MljtwO/Q=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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