Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '33e64dc37dffe06113d809620c2f2a571105720b8ea63ba97cc028f183986662' 
  AND token = 'SF3bjzzz7hdHyjLfTqVzLC8d60Dv5smCiM+HSQN2gos=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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