Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2eeac1190047c3de5c156c0b860f60ba896145f39714a0dc7ce203092e1566fa' 
  AND token = 'aOlBi8AcqPjOH6HboJ6xg0xWpKqRxUoIobx3JTS8/Sk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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