Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '764877579aa36f6631b6672659fd9d5b2e0df43c8741789b1d3e86b3d894676e' 
  AND token = 'uZWhpzoGbFZTde62LJOI84eHdwc6uJwt7iozhwXzSMk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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