Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1959f5ee9830499bfb1700cd73d04186601995771c8dd6c1228234f2d24f9798' 
  AND token = 'o45rNUIv5n1RCzk1kwo2YY6cMhFkv3LzmTj7D3ztOX0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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