Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'eb1503a977fda23bf855d2dcac02278d0ad4f71c3e20931634a48c6ccdc00a83' 
  AND token = 'bD3d6A4xvDqF5kJfZNzaED5r1sIvR5O7p9FCs89A6PA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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