Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0317195190fac58b6396578cf74b526a0bfc48006f2d6b2b9980af3a8b11922d' 
  AND token = 'ubXlM/agJ1XjACH5Nz2rjx/iUsQXGlU+Xj91ke2WIIg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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