Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c597764218a7c9e138e9fd56072fd219fa78d3fbe7b518cf38b7852f0c977db1' 
  AND token = 'VzW+OJyzqB8UaIMRLgP3ofxXMa4ozdjpv8Fllt9qkkM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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