Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '791310b66dc171205e84aa1eb6d2397d8bb85649edf0e8fe301756a233bd65d2' 
  AND token = 'J1twW5N9Tk30DJnp/j5J9H0WGutnS4jJkrTp9yDl/EE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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