Sandbox

SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = 'a072795c8e0a87a8c16a0c57ab99e652c0e8ae2d191ffa38e0cabf96af2ec5ef' 
  AND token = 'LtvjkjOFIrYrt5dIjclpaCaZcye/jcbmpZ57Ik0nLzY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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