Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'aaaa9e94d2ab90d459982ad1aa40c216b290667cb9babb7abfc2b838cbb5de1f' 
  AND token = 'S7cpS8gcqz1TceK7W0TTl2N6GYSdteT4mdNMXermTpw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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