Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd7dc9f670789cc32b25a5c9e4456770c114e1f8d502c1026913434f480870083' 
  AND token = 'hNo+WnqxQFDr1Vr2J97Z7k0m1MccIMFlnYpwUtBvJGE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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