Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '88009346f5026725658f97d866e5e3fcdc929f06e338eb3a9bdf17c8e566d757' 
  AND token = '4L+B4HopAsw45dmFfiXGkdS4Ers4c98wuYdSJg8arac=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00178

JSON explain

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