Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a532ebc28c9d50bbaab84e11bf97217dfa1f620e6383f87890330fe7f6913847' 
  AND token = '5MVOzSRQnM3yHw43XqFAJw7iuk6qtA1v4CofC3ekRgE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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