Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '07c3edd6d64d1a541d61a83f5a719ac6fca0e479dd7d5710cfd03283a49a2d00' 
  AND token = 'dnKem2fbV0971qUTJ0hmtAa7G322bRgqaOZrNreNxBM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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