Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '67c098580fad908298d85b265422a33787a2322b1e78aa9a6ffdcc490321decf' 
  AND token = 'FlXhi9Fu9qRU5VWMDiTTAx25Iu/0/S7OV2t6DBKz62E=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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