Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '870633677d47fc937b54924a34801bb0006953a0b73dffc10f5d52e645219063' 
  AND token = 'NUQaVGIMmC+rXiIGRQSlE4j57ZxIk+20Yz6s4Axd1wE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00090

JSON explain

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