Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '165c1d93838e08ced46adc858cf321311384ee56c95cd7e901b9cfaa8736d8d7' 
  AND token = 'cSWySXXwpB5m4ebVju/FHnZQI2wMgUU3ZecBrC3m1GQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00011

JSON explain

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