Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8072792f027dc96641408d225307ed983cea131127b6e3584efb159de01135b0' 
  AND token = 'YaDL0Fox8lLuKMYX1N2F9lvrF02DOp0QFt+OOvyP/DY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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