Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'dd94c1f83b1ddff3c1cb82f8fab8c4f34ba85b95f3eacf649677e0d3b03d1106' 
  AND token = 'WUW00Ef7V9eY42Cm2bqB3GsAICr0sr/bjfVT5sC4L6k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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