Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4824b7c5c8cb7772475ee556cc12d5486bac142e55cc697c3cea2fd7b65f8f54' 
  AND token = 'GV33fPFEDUV5pRb0wppo0Tmbnu0PX9CiAKgkVfT5VSo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00123

JSON explain

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