Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7229fcff9bbcf2d16e16030025072fe59ebc748dc473cf92c5b03ad2e67ce346' 
  AND token = 'Z+PRAry+YE4DdPmpkohcznLfJE61oormfej0a1xn/zE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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