Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0f81f27369530ada25f3b019bd374994f72aa3d093dfeba0f67a2010d133c672' 
  AND token = 'anN4sISHmcYL2HBRl8j9jh/KMB26RPbhqB6FN4ZpW/c=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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