Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '37b95dd261f97446d323f445151fb33cc7e800bc4dbb7ef29583a38eff486a98' 
  AND token = 'i1Zt3grmPOyWRk8SGzTTciXzEdVg+uq24n+EnV3BLWk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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