Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '7f44abcb3949b94fb90405701692551c74f6cdee796f73197115edd9ba035e57' 
  AND token = 'AJbrymdnJPc7CrKkXX7vi2yzpJK60AQrOBh8rR3qbxk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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