Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '087b977b4ed5502bdaeeabe86ed86553774e75edc69bb985692e289498abe340' 
  AND token = 'dF+9ANr6wHkSuoFJadmsMoL5zk942mgF4V4YN6emKu4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00049

JSON explain

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