Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '13c2a6411fff6c0c1fee55534da192af801000d214fe8eb0950fae903c0f3335' 
  AND token = 'bURy+2opQtVsRTifIIlRYZPgPc3tQbsUv8cgq8AOxJw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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