Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '658e63cd3a8f8a7fe84f1885210ac33bee8061825483eb5ac8e189d044881ae9' 
  AND token = 'BlUEp73jp6N522XfhzV/HqtOMDex1O6A8XRzXIpArkI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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