Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4a85b185e7b744b630cc69c19ed70d7101605176ed1d1d98f6604b9067632109' 
  AND token = 'hh5nJhtmVgaS9GXfIEQsWjWukavJLbzP16+uLULcgCw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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