Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c22532abff5243e7602f7e2f38f3ff063dac72901a9543d00b9a3a4516fa97ea' 
  AND token = 'vzbovST/GnyjrWLw10cI6VHs4YUC3yxIZYEEv/FtvNU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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