Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ba361cbc27b1e16075c20f8939a300804abe3a7599ed5757b274c79e2d1df615' 
  AND token = 'Qm4luQounnQwVz+0R07jjaGOakTuXGcRl4cIV39MbhU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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