Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'de06dc1497364290a4e2574666f1f7b207bcaca76c4b2934772c33490e41c94e' 
  AND token = 'X5fS/4OkRk60K0tJEqBhlnvW7tTwGn6Yym59M1ytOto=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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