Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6af487dfa2d54fe402666af7483f761ffc7f96d327d5d6c040b159d366317830' 
  AND token = 'Zpm4uWGsdUkQ01WEakO5IJ7MWAUIWSCITIGqW+Gvkiw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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