Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '113bcdf19ddc42c9f77c044c99d5be553449c4d4e4c3d6d5687bb4da67a84644' 
  AND token = 'J2jMTiiO5Elz3Ex741y9gilHKON08bOlAjl4pBnm0cg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00050

JSON explain

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