Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7b2822966d8934ae0e4ccd9bfcc97c86ba84bd691d4a94990c3bbf58b2481818' 
  AND token = 'XogflgyiqvBXCjEJEWIcdd3Cqhrljl2AFFsaeU+iAnU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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