Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1b403647ac9ec6c52179348826ecff9d74e46193a97127cc25ccd47d919c5913' 
  AND token = 'qrRcDBCjxKrnRbGPgOhzTzciJOyO7saIg0xyzKLOcWc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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