Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7bf5fc94a37fa3fe892b8ad228b472d432a9647f584c10a5b7f3462fd90ae4b5' 
  AND token = 'GxHLa1tw6Ni+SY/zcgRddocg9DsDzKwMsIPnMD84Q+g=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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