Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ba960d2baedc89342bb920490dea93a52941e0aa145938421c9d5b4e43398f24' 
  AND token = '/7c/Z8uFivmoCsNfZBWjg0mfNKi/u1ZkD6K3Pe1oMx4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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