Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '586652d54d1c3fda630f91548a47d4d64f6d060dad82dfb0da5d6d0014db6f62' 
  AND token = 'cr8wla19/99CRetP+0Jayts+aZivqd6IG+rjY+7lV3Y=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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