Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7bb2bca0d3eccbb8641db96a125208cad8a46e77a0828838d5906674e1f9a2a2' 
  AND token = 'y5gOhqdOwveqqu8X2u9u5B5WLCHC5RjHxMSEbowszAo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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