Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'cad23f1d44ae9d2c0e3c6ba07d9856dc29f6dea4c132f570df43932a7b9cd334' 
  AND token = '0U3t8NxhAf0n8Qu/6GpifbtqWuULCP/jT67PNR/+EPU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}