Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '11004c1a2811885e673926744d11855290afe8325acf7b7b7b1e6c0cb8db2e5e' 
  AND token = 'BYpGWX5T8YQyIeGTljpHOIr7oVKv6hq2nYBEaS3RdbQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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