Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2936dccc459ed4a4904c222e6d7f7e0b1454548baca33cbe41c03d3fec127b5b' 
  AND token = '77Qy/hDtSnE/DQ4La25Rst9nE9wjlogtBrGuQli/LXU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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