Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'af632c5edb1fb5d2e6278d96695f6684c9bd58fba38676e46127ee0668552b8f' 
  AND token = 'npdNSbiXecBEoBc6txVU/cbwer8yu2RjMENw0M3gcY0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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