Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7b459a80e25361abb5393392bc2bb2336fa7d066c5b6a261d68c553be0614360' 
  AND token = 'PIYHCYD+je2fW7OrxxYwoMfJq2OGE3AqF/yn9Nqev+8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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