Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd06573e1efda1a8145d5464d038d66c20827cc3e5f39f0cc738c6588859c398c' 
  AND token = '64wIG4BZdWZS+G5iSc3LDv/+QmAmdxG9p0wlZSSdxyg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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