Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9661feb22a843d34216b29db8d17bbcbb93d4ef0c788f0711b236799fb465e4a' 
  AND token = 'RMXtPpKxyv14sr10EftXClpFJgtC8v0m7K7SIv/+4L0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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