Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8097f2e3cfd37aab5e86da3e9d6b439a219d3cbd072e4dc1a9e66ae525d7de44' 
  AND token = '/Q5F1HW72JvspL/lf86XMj3i4BEPqaPVAyMXUwAvTw4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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