Sandbox

SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = '3822f7e91db7682ccbb5020015df76e2b5c9754dc151e949cec4305de2183fec' 
  AND token = 'QVVGC5UVHbie9DaL4MI+oD9FwoZa73mhQAiGyboUF6I=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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