Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '269cc107b8950b8ad9e8810393704d2f5d16c8beb3b6081983848391e04cf774' 
  AND token = 'Uerhze1Bs7b2IZUATA0JywevaTh4faT7gBnktQRJKi8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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