Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'cba55abe7b585395736814386ed2b660cd58d326ff57a2cbf4e40195553ac533' 
  AND token = '49HtIof8XNcKqAekceYRkozbW5q2pBopn4lQGFew5iY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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