Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '91b24860168404eb38fc08ae6b1936b6f712c1c03ce85382efec6f894921fe40' 
  AND token = 'pmZQb9EczMpdF5aIzyqqUhKcD0L97OMQs/P/PlBPHEE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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