Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ab951f2d8dc4a8157ff5a6e1e7af65ef71a5000be475b74d44b7f35ae9974d72' 
  AND token = 'lxmMlntk10FgGo9AjflP0vc9okvowv93gBfEODxIY5g=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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