SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '980027497fe4f8d06c47df84ac04c7459607dcb14a777a2b87b0dc83e51d661c' 
  AND token = 'J4R5Vq653SGGbpRw3u2q1f5LMh8uFyJzYwM+BbeRwDc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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