Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6672a4a100fefdd7e6e4c6e31fb61291ee3b5e1a6496d2fda871fb8171b18529' 
  AND token = 'wW9k2hEHCZJ83JCdMxSMSwoQElkt6RejMBmU5Uzbimw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00093

JSON explain

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