Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '85f9f306434bda9633ad8940cc7a23a7442836b2b3c6d285cccfe3179acbf3c9' 
  AND token = 'psoq6+1NFwpEx6JyBhSYphDjtvo4R37m+xD9q7joIoo=' 
  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"
    }
  }
}